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Finding the Fourth Proportional to 69,955.80, 96,539.12 and 38,124.69

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Solution

The fourth proportional to 69,955.80, 96,539.12 and 38,124.69 is: 52,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,955.80 : 96,539.12 = 38,124.69 : x
  2. Step 2: Convert to fraction form
    69,955.80/96,539.12 = 38,124.69/x
  3. Step 3: Cross multiply
    69,955.80x = 96,539.12 × 38,124.69
  4. Step 4: Simplify right side
    69,955.80x = 3,680,524,022.87
  5. Step 5: Solve for x
    x = 3,680,524,022.87/69,955.80
  6. Step 6: Final answer
    x = 52,612.14

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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.