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Finding the Fourth Proportional to 62,760.88, 94,070.15 and 31,131.40

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Solution

The fourth proportional to 62,760.88, 94,070.15 and 31,131.40 is: 46,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,760.88 : 94,070.15 = 31,131.40 : x
  2. Step 2: Convert to fraction form
    62,760.88/94,070.15 = 31,131.40/x
  3. Step 3: Cross multiply
    62,760.88x = 94,070.15 × 31,131.40
  4. Step 4: Simplify right side
    62,760.88x = 2,928,534,841.70
  5. Step 5: Solve for x
    x = 2,928,534,841.70/62,760.88
  6. Step 6: Final answer
    x = 46,661.79

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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.