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Finding the Fourth Proportional to 60,577.60, 90,790.80 and 31,007.20

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Solution

The fourth proportional to 60,577.60, 90,790.80 and 31,007.20 is: 46,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,577.60 : 90,790.80 = 31,007.20 : x
  2. Step 2: Convert to fraction form
    60,577.60/90,790.80 = 31,007.20/x
  3. Step 3: Cross multiply
    60,577.60x = 90,790.80 × 31,007.20
  4. Step 4: Simplify right side
    60,577.60x = 2,815,168,493.76
  5. Step 5: Solve for x
    x = 2,815,168,493.76/60,577.60
  6. Step 6: Final answer
    x = 46,472.10

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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.