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Finding the Fourth Proportional to 19,851.71, 29,777.54 and 15,472.44

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Solution

The fourth proportional to 19,851.71, 29,777.54 and 15,472.44 is: 23,208.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.71 : 29,777.54 = 15,472.44 : x
  2. Step 2: Convert to fraction form
    19,851.71/29,777.54 = 15,472.44/x
  3. Step 3: Cross multiply
    19,851.71x = 29,777.54 × 15,472.44
  4. Step 4: Simplify right side
    19,851.71x = 460,731,123.64
  5. Step 5: Solve for x
    x = 460,731,123.64/19,851.71
  6. Step 6: Final answer
    x = 23,208.64

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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.