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Finding the Fourth Proportional to 10,168.60, 15,223.20 and 7,252.60

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Solution

The fourth proportional to 10,168.60, 15,223.20 and 7,252.60 is: 10,857.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,168.60 : 15,223.20 = 7,252.60 : x
  2. Step 2: Convert to fraction form
    10,168.60/15,223.20 = 7,252.60/x
  3. Step 3: Cross multiply
    10,168.60x = 15,223.20 × 7,252.60
  4. Step 4: Simplify right side
    10,168.60x = 110,407,780.32
  5. Step 5: Solve for x
    x = 110,407,780.32/10,168.60
  6. Step 6: Final answer
    x = 10,857.72

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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.