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Finding the Fourth Proportional to 7,387.60, 10,195.14 and 4,030.60

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Solution

The fourth proportional to 7,387.60, 10,195.14 and 4,030.60 is: 5,562.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.60 : 10,195.14 = 4,030.60 : x
  2. Step 2: Convert to fraction form
    7,387.60/10,195.14 = 4,030.60/x
  3. Step 3: Cross multiply
    7,387.60x = 10,195.14 × 4,030.60
  4. Step 4: Simplify right side
    7,387.60x = 41,092,531.28
  5. Step 5: Solve for x
    x = 41,092,531.28/7,387.60
  6. Step 6: Final answer
    x = 5,562.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.