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Finding the Fourth Proportional to 11,402.03, 15,737.42 and 6,687.83

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Solution

The fourth proportional to 11,402.03, 15,737.42 and 6,687.83 is: 9,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.03 : 15,737.42 = 6,687.83 : x
  2. Step 2: Convert to fraction form
    11,402.03/15,737.42 = 6,687.83/x
  3. Step 3: Cross multiply
    11,402.03x = 15,737.42 × 6,687.83
  4. Step 4: Simplify right side
    11,402.03x = 105,249,110.91
  5. Step 5: Solve for x
    x = 105,249,110.91/11,402.03
  6. Step 6: Final answer
    x = 9,230.74

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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.