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Finding the Fourth Proportional to 60,577.80, 90,866.70 and 56,689.80

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Solution

The fourth proportional to 60,577.80, 90,866.70 and 56,689.80 is: 85,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,577.80 : 90,866.70 = 56,689.80 : x
  2. Step 2: Convert to fraction form
    60,577.80/90,866.70 = 56,689.80/x
  3. Step 3: Cross multiply
    60,577.80x = 90,866.70 × 56,689.80
  4. Step 4: Simplify right side
    60,577.80x = 5,151,215,049.66
  5. Step 5: Solve for x
    x = 5,151,215,049.66/60,577.80
  6. Step 6: Final answer
    x = 85,034.70

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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.