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Finding the Fourth Proportional to 15,595.76, 21,522.76 and 8,522.48

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Solution

The fourth proportional to 15,595.76, 21,522.76 and 8,522.48 is: 11,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.76 : 21,522.76 = 8,522.48 : x
  2. Step 2: Convert to fraction form
    15,595.76/21,522.76 = 8,522.48/x
  3. Step 3: Cross multiply
    15,595.76x = 21,522.76 × 8,522.48
  4. Step 4: Simplify right side
    15,595.76x = 183,427,291.64
  5. Step 5: Solve for x
    x = 183,427,291.64/15,595.76
  6. Step 6: Final answer
    x = 11,761.36

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Half scale
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Double scale
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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.