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Finding the Fourth Proportional to 42,506.64, 58,664.25 and 25,520.40

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Solution

The fourth proportional to 42,506.64, 58,664.25 and 25,520.40 is: 35,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,506.64 : 58,664.25 = 25,520.40 : x
  2. Step 2: Convert to fraction form
    42,506.64/58,664.25 = 25,520.40/x
  3. Step 3: Cross multiply
    42,506.64x = 58,664.25 × 25,520.40
  4. Step 4: Simplify right side
    42,506.64x = 1,497,135,125.70
  5. Step 5: Solve for x
    x = 1,497,135,125.70/42,506.64
  6. Step 6: Final answer
    x = 35,221.21

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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.