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Finding the Fourth Proportional to 15,869.22, 23,772.09 and 7,557.30

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Solution

The fourth proportional to 15,869.22, 23,772.09 and 7,557.30 is: 11,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.22 : 23,772.09 = 7,557.30 : x
  2. Step 2: Convert to fraction form
    15,869.22/23,772.09 = 7,557.30/x
  3. Step 3: Cross multiply
    15,869.22x = 23,772.09 × 7,557.30
  4. Step 4: Simplify right side
    15,869.22x = 179,652,815.76
  5. Step 5: Solve for x
    x = 179,652,815.76/15,869.22
  6. Step 6: Final answer
    x = 11,320.83

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1.5x scale

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.