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Finding the Fourth Proportional to 48,487.67, 72,731.46 and 15,210.30

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Solution

The fourth proportional to 48,487.67, 72,731.46 and 15,210.30 is: 22,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,487.67 : 72,731.46 = 15,210.30 : x
  2. Step 2: Convert to fraction form
    48,487.67/72,731.46 = 15,210.30/x
  3. Step 3: Cross multiply
    48,487.67x = 72,731.46 × 15,210.30
  4. Step 4: Simplify right side
    48,487.67x = 1,106,267,326.04
  5. Step 5: Solve for x
    x = 1,106,267,326.04/48,487.67
  6. Step 6: Final answer
    x = 22,815.44

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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.