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Finding the Fourth Proportional to 8,762.43, 12,088.17 and 5,174.94

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Solution

The fourth proportional to 8,762.43, 12,088.17 and 5,174.94 is: 7,139.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.43 : 12,088.17 = 5,174.94 : x
  2. Step 2: Convert to fraction form
    8,762.43/12,088.17 = 5,174.94/x
  3. Step 3: Cross multiply
    8,762.43x = 12,088.17 × 5,174.94
  4. Step 4: Simplify right side
    8,762.43x = 62,555,554.46
  5. Step 5: Solve for x
    x = 62,555,554.46/8,762.43
  6. Step 6: Final answer
    x = 7,139.06

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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.