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Finding the Fourth Proportional to 56,191.92, 77,547.96 and 31,040.88

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Solution

The fourth proportional to 56,191.92, 77,547.96 and 31,040.88 is: 42,838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,191.92 : 77,547.96 = 31,040.88 : x
  2. Step 2: Convert to fraction form
    56,191.92/77,547.96 = 31,040.88/x
  3. Step 3: Cross multiply
    56,191.92x = 77,547.96 × 31,040.88
  4. Step 4: Simplify right side
    56,191.92x = 2,407,156,920.60
  5. Step 5: Solve for x
    x = 2,407,156,920.60/56,191.92
  6. Step 6: Final answer
    x = 42,838.13

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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.