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Finding the Fourth Proportional to 19,753.80, 29,597.90 and 13,898.10

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Solution

The fourth proportional to 19,753.80, 29,597.90 and 13,898.10 is: 20,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,753.80 : 29,597.90 = 13,898.10 : x
  2. Step 2: Convert to fraction form
    19,753.80/29,597.90 = 13,898.10/x
  3. Step 3: Cross multiply
    19,753.80x = 29,597.90 × 13,898.10
  4. Step 4: Simplify right side
    19,753.80x = 411,354,573.99
  5. Step 5: Solve for x
    x = 411,354,573.99/19,753.80
  6. Step 6: Final answer
    x = 20,824.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.