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Finding the Fourth Proportional to 10,607.60, 15,906.60 and 4,031.60

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Solution

The fourth proportional to 10,607.60, 15,906.60 and 4,031.60 is: 6,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,607.60 : 15,906.60 = 4,031.60 : x
  2. Step 2: Convert to fraction form
    10,607.60/15,906.60 = 4,031.60/x
  3. Step 3: Cross multiply
    10,607.60x = 15,906.60 × 4,031.60
  4. Step 4: Simplify right side
    10,607.60x = 64,129,048.56
  5. Step 5: Solve for x
    x = 64,129,048.56/10,607.60
  6. Step 6: Final answer
    x = 6,045.58

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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.