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Finding the Fourth Proportional to 48,187.70, 72,280.20 and 21,892.40

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Solution

The fourth proportional to 48,187.70, 72,280.20 and 21,892.40 is: 32,837.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,187.70 : 72,280.20 = 21,892.40 : x
  2. Step 2: Convert to fraction form
    48,187.70/72,280.20 = 21,892.40/x
  3. Step 3: Cross multiply
    48,187.70x = 72,280.20 × 21,892.40
  4. Step 4: Simplify right side
    48,187.70x = 1,582,387,050.48
  5. Step 5: Solve for x
    x = 1,582,387,050.48/48,187.70
  6. Step 6: Final answer
    x = 32,837.99

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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.