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Finding the Fourth Proportional to 73,403.40, 110,129.40 and 23,491.20

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Solution

The fourth proportional to 73,403.40, 110,129.40 and 23,491.20 is: 35,244.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,403.40 : 110,129.40 = 23,491.20 : x
  2. Step 2: Convert to fraction form
    73,403.40/110,129.40 = 23,491.20/x
  3. Step 3: Cross multiply
    73,403.40x = 110,129.40 × 23,491.20
  4. Step 4: Simplify right side
    73,403.40x = 2,587,071,761.28
  5. Step 5: Solve for x
    x = 2,587,071,761.28/73,403.40
  6. Step 6: Final answer
    x = 35,244.58

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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.