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Finding the Fourth Proportional to 15,532.75, 21,437.22 and 9,245.13

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Solution

The fourth proportional to 15,532.75, 21,437.22 and 9,245.13 is: 12,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.75 : 21,437.22 = 9,245.13 : x
  2. Step 2: Convert to fraction form
    15,532.75/21,437.22 = 9,245.13/x
  3. Step 3: Cross multiply
    15,532.75x = 21,437.22 × 9,245.13
  4. Step 4: Simplify right side
    15,532.75x = 198,189,885.74
  5. Step 5: Solve for x
    x = 198,189,885.74/15,532.75
  6. Step 6: Final answer
    x = 12,759.48

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Half scale
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Double scale
Find fourth proportional to 15,533.75, 21,438.60 and 9,246.13
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.