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Finding the Fourth Proportional to 8,700.92, 13,043.33 and 3,152.93

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Solution

The fourth proportional to 8,700.92, 13,043.33 and 3,152.93 is: 4,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.92 : 13,043.33 = 3,152.93 : x
  2. Step 2: Convert to fraction form
    8,700.92/13,043.33 = 3,152.93/x
  3. Step 3: Cross multiply
    8,700.92x = 13,043.33 × 3,152.93
  4. Step 4: Simplify right side
    8,700.92x = 41,124,637.30
  5. Step 5: Solve for x
    x = 41,124,637.30/8,700.92
  6. Step 6: Final answer
    x = 4,726.47

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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.