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Finding the Fourth Proportional to 21,593.60, 29,798.16 and 14,518.88

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Solution

The fourth proportional to 21,593.60, 29,798.16 and 14,518.88 is: 20,035.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.60 : 29,798.16 = 14,518.88 : x
  2. Step 2: Convert to fraction form
    21,593.60/29,798.16 = 14,518.88/x
  3. Step 3: Cross multiply
    21,593.60x = 29,798.16 × 14,518.88
  4. Step 4: Simplify right side
    21,593.60x = 432,635,909.26
  5. Step 5: Solve for x
    x = 432,635,909.26/21,593.60
  6. Step 6: Final answer
    x = 20,035.38

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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.