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Finding the Fourth Proportional to 42,392.40, 63,617.40 and 23,672.40

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Solution

The fourth proportional to 42,392.40, 63,617.40 and 23,672.40 is: 35,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,392.40 : 63,617.40 = 23,672.40 : x
  2. Step 2: Convert to fraction form
    42,392.40/63,617.40 = 23,672.40/x
  3. Step 3: Cross multiply
    42,392.40x = 63,617.40 × 23,672.40
  4. Step 4: Simplify right side
    42,392.40x = 1,505,976,539.76
  5. Step 5: Solve for x
    x = 1,505,976,539.76/42,392.40
  6. Step 6: Final answer
    x = 35,524.68

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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.