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Finding the Fourth Proportional to 60,677.31, 90,904.89 and 43,995.90

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Solution

The fourth proportional to 60,677.31, 90,904.89 and 43,995.90 is: 65,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,677.31 : 90,904.89 = 43,995.90 : x
  2. Step 2: Convert to fraction form
    60,677.31/90,904.89 = 43,995.90/x
  3. Step 3: Cross multiply
    60,677.31x = 90,904.89 × 43,995.90
  4. Step 4: Simplify right side
    60,677.31x = 3,999,442,449.95
  5. Step 5: Solve for x
    x = 3,999,442,449.95/60,677.31
  6. Step 6: Final answer
    x = 65,913.31

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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.