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Finding the Fourth Proportional to 52,660.60, 78,995.04 and 17,600.40

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Solution

The fourth proportional to 52,660.60, 78,995.04 and 17,600.40 is: 26,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,660.60 : 78,995.04 = 17,600.40 : x
  2. Step 2: Convert to fraction form
    52,660.60/78,995.04 = 17,600.40/x
  3. Step 3: Cross multiply
    52,660.60x = 78,995.04 × 17,600.40
  4. Step 4: Simplify right side
    52,660.60x = 1,390,344,302.02
  5. Step 5: Solve for x
    x = 1,390,344,302.02/52,660.60
  6. Step 6: Final answer
    x = 26,401.98

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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.