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Finding the Fourth Proportional to 54,798.80, 82,188.74 and 15,346.53

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Solution

The fourth proportional to 54,798.80, 82,188.74 and 15,346.53 is: 23,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,798.80 : 82,188.74 = 15,346.53 : x
  2. Step 2: Convert to fraction form
    54,798.80/82,188.74 = 15,346.53/x
  3. Step 3: Cross multiply
    54,798.80x = 82,188.74 × 15,346.53
  4. Step 4: Simplify right side
    54,798.80x = 1,261,312,002.44
  5. Step 5: Solve for x
    x = 1,261,312,002.44/54,798.80
  6. Step 6: Final answer
    x = 23,017.15

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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.