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Finding the Fourth Proportional to 54,881.70, 82,322.55 and 15,440.10

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Solution

The fourth proportional to 54,881.70, 82,322.55 and 15,440.10 is: 23,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,881.70 : 82,322.55 = 15,440.10 : x
  2. Step 2: Convert to fraction form
    54,881.70/82,322.55 = 15,440.10/x
  3. Step 3: Cross multiply
    54,881.70x = 82,322.55 × 15,440.10
  4. Step 4: Simplify right side
    54,881.70x = 1,271,068,404.26
  5. Step 5: Solve for x
    x = 1,271,068,404.26/54,881.70
  6. Step 6: Final answer
    x = 23,160.15

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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.