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Finding the Fourth Proportional to 5,287,681.92, 7,931,550.24 and 2,407,034.18

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Solution

The fourth proportional to 5,287,681.92, 7,931,550.24 and 2,407,034.18 is: 3,610,563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287,681.92 : 7,931,550.24 = 2,407,034.18 : x
  2. Step 2: Convert to fraction form
    5,287,681.92/7,931,550.24 = 2,407,034.18/x
  3. Step 3: Cross multiply
    5,287,681.92x = 7,931,550.24 × 2,407,034.18
  4. Step 4: Simplify right side
    5,287,681.92x = 19,091,512,528,067.20
  5. Step 5: Solve for x
    x = 19,091,512,528,067.20/5,287,681.92
  6. Step 6: Final answer
    x = 3,610,563.72

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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.