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Finding the Fourth Proportional to 52,248.40, 78,372.60 and 27,672.40

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Solution

The fourth proportional to 52,248.40, 78,372.60 and 27,672.40 is: 41,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,248.40 : 78,372.60 = 27,672.40 : x
  2. Step 2: Convert to fraction form
    52,248.40/78,372.60 = 27,672.40/x
  3. Step 3: Cross multiply
    52,248.40x = 78,372.60 × 27,672.40
  4. Step 4: Simplify right side
    52,248.40x = 2,168,757,936.24
  5. Step 5: Solve for x
    x = 2,168,757,936.24/52,248.40
  6. Step 6: Final answer
    x = 41,508.60

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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.