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Finding the Fourth Proportional to 48,356.30, 72,456.69 and 40,580.30

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Solution

The fourth proportional to 48,356.30, 72,456.69 and 40,580.30 is: 60,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,356.30 : 72,456.69 = 40,580.30 : x
  2. Step 2: Convert to fraction form
    48,356.30/72,456.69 = 40,580.30/x
  3. Step 3: Cross multiply
    48,356.30x = 72,456.69 × 40,580.30
  4. Step 4: Simplify right side
    48,356.30x = 2,940,314,217.21
  5. Step 5: Solve for x
    x = 2,940,314,217.21/48,356.30
  6. Step 6: Final answer
    x = 60,805.19

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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.