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Finding the Fourth Proportional to 7,136,978.52, 9,849,040.26 and 3,873,793.93

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Solution

The fourth proportional to 7,136,978.52, 9,849,040.26 and 3,873,793.93 is: 5,345,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,978.52 : 9,849,040.26 = 3,873,793.93 : x
  2. Step 2: Convert to fraction form
    7,136,978.52/9,849,040.26 = 3,873,793.93/x
  3. Step 3: Cross multiply
    7,136,978.52x = 9,849,040.26 × 3,873,793.93
  4. Step 4: Simplify right side
    7,136,978.52x = 38,153,152,375,513.62
  5. Step 5: Solve for x
    x = 38,153,152,375,513.62/7,136,978.52
  6. Step 6: Final answer
    x = 5,345,841.00

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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.