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Finding the Fourth Proportional to 45,498.60, 62,787.12 and 25,355.40

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Solution

The fourth proportional to 45,498.60, 62,787.12 and 25,355.40 is: 34,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,498.60 : 62,787.12 = 25,355.40 : x
  2. Step 2: Convert to fraction form
    45,498.60/62,787.12 = 25,355.40/x
  3. Step 3: Cross multiply
    45,498.60x = 62,787.12 × 25,355.40
  4. Step 4: Simplify right side
    45,498.60x = 1,591,992,542.45
  5. Step 5: Solve for x
    x = 1,591,992,542.45/45,498.60
  6. Step 6: Final answer
    x = 34,989.92

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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.