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Finding the Fourth Proportional to 40,491, 55,875.96 and 22,585.86

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Solution

The fourth proportional to 40,491, 55,875.96 and 22,585.86 is: 31,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,491 : 55,875.96 = 22,585.86 : x
  2. Step 2: Convert to fraction form
    40,491/55,875.96 = 22,585.86/x
  3. Step 3: Cross multiply
    40,491x = 55,875.96 × 22,585.86
  4. Step 4: Simplify right side
    40,491x = 1,262,006,609.93
  5. Step 5: Solve for x
    x = 1,262,006,609.93/40,491
  6. Step 6: Final answer
    x = 31,167.58

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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.