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Finding the Fourth Proportional to 48,620.76, 72,939.36 and 15,340.10

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Solution

The fourth proportional to 48,620.76, 72,939.36 and 15,340.10 is: 23,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,620.76 : 72,939.36 = 15,340.10 : x
  2. Step 2: Convert to fraction form
    48,620.76/72,939.36 = 15,340.10/x
  3. Step 3: Cross multiply
    48,620.76x = 72,939.36 × 15,340.10
  4. Step 4: Simplify right side
    48,620.76x = 1,118,896,711.64
  5. Step 5: Solve for x
    x = 1,118,896,711.64/48,620.76
  6. Step 6: Final answer
    x = 23,012.74

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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.