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Finding the Fourth Proportional to 15,595.58, 21,521.98 and 8,522.12

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Solution

The fourth proportional to 15,595.58, 21,521.98 and 8,522.12 is: 11,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.58 : 21,521.98 = 8,522.12 : x
  2. Step 2: Convert to fraction form
    15,595.58/21,521.98 = 8,522.12/x
  3. Step 3: Cross multiply
    15,595.58x = 21,521.98 × 8,522.12
  4. Step 4: Simplify right side
    15,595.58x = 183,412,896.20
  5. Step 5: Solve for x
    x = 183,412,896.20/15,595.58
  6. Step 6: Final answer
    x = 11,760.57

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Double scale
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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.