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Finding the Fourth Proportional to 19,957.72, 29,917.02 and 17,002.84

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Solution

The fourth proportional to 19,957.72, 29,917.02 and 17,002.84 is: 25,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.72 : 29,917.02 = 17,002.84 : x
  2. Step 2: Convert to fraction form
    19,957.72/29,917.02 = 17,002.84/x
  3. Step 3: Cross multiply
    19,957.72x = 29,917.02 × 17,002.84
  4. Step 4: Simplify right side
    19,957.72x = 508,674,304.34
  5. Step 5: Solve for x
    x = 508,674,304.34/19,957.72
  6. Step 6: Final answer
    x = 25,487.60

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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.