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Finding the Fourth Proportional to 10,368.60, 15,552.90 and 7,452.60

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Solution

The fourth proportional to 10,368.60, 15,552.90 and 7,452.60 is: 11,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.60 : 15,552.90 = 7,452.60 : x
  2. Step 2: Convert to fraction form
    10,368.60/15,552.90 = 7,452.60/x
  3. Step 3: Cross multiply
    10,368.60x = 15,552.90 × 7,452.60
  4. Step 4: Simplify right side
    10,368.60x = 115,909,542.54
  5. Step 5: Solve for x
    x = 115,909,542.54/10,368.60
  6. Step 6: Final answer
    x = 11,178.90

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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.