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Finding the Fourth Proportional to 8,600.99, 12,902.76 and 3,053.87

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Solution

The fourth proportional to 8,600.99, 12,902.76 and 3,053.87 is: 4,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.99 : 12,902.76 = 3,053.87 : x
  2. Step 2: Convert to fraction form
    8,600.99/12,902.76 = 3,053.87/x
  3. Step 3: Cross multiply
    8,600.99x = 12,902.76 × 3,053.87
  4. Step 4: Simplify right side
    8,600.99x = 39,403,287.17
  5. Step 5: Solve for x
    x = 39,403,287.17/8,600.99
  6. Step 6: Final answer
    x = 4,581.25

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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.