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Finding the Fourth Proportional to 15,708.71, 23,562.46 and 5,320.46

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Solution

The fourth proportional to 15,708.71, 23,562.46 and 5,320.46 is: 7,980.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.71 : 23,562.46 = 5,320.46 : x
  2. Step 2: Convert to fraction form
    15,708.71/23,562.46 = 5,320.46/x
  3. Step 3: Cross multiply
    15,708.71x = 23,562.46 × 5,320.46
  4. Step 4: Simplify right side
    15,708.71x = 125,363,125.93
  5. Step 5: Solve for x
    x = 125,363,125.93/15,708.71
  6. Step 6: Final answer
    x = 7,980.49

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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.