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Finding the Fourth Proportional to 42,458.40, 63,614.70 and 27,659.70

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Solution

The fourth proportional to 42,458.40, 63,614.70 and 27,659.70 is: 41,442.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,458.40 : 63,614.70 = 27,659.70 : x
  2. Step 2: Convert to fraction form
    42,458.40/63,614.70 = 27,659.70/x
  3. Step 3: Cross multiply
    42,458.40x = 63,614.70 × 27,659.70
  4. Step 4: Simplify right side
    42,458.40x = 1,759,563,517.59
  5. Step 5: Solve for x
    x = 1,759,563,517.59/42,458.40
  6. Step 6: Final answer
    x = 41,442.06

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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.