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Finding the Fourth Proportional to 15,812.07, 23,721.02 and 5,281.10

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Solution

The fourth proportional to 15,812.07, 23,721.02 and 5,281.10 is: 7,922.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.07 : 23,721.02 = 5,281.10 : x
  2. Step 2: Convert to fraction form
    15,812.07/23,721.02 = 5,281.10/x
  3. Step 3: Cross multiply
    15,812.07x = 23,721.02 × 5,281.10
  4. Step 4: Simplify right side
    15,812.07x = 125,272,933.71
  5. Step 5: Solve for x
    x = 125,272,933.71/15,812.07
  6. Step 6: Final answer
    x = 7,922.61

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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.