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Finding the Fourth Proportional to 19,842,521.03, 29,748,642.65 and 9,052,275.83

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Solution

The fourth proportional to 19,842,521.03, 29,748,642.65 and 9,052,275.83 is: 13,571,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842,521.03 : 29,748,642.65 = 9,052,275.83 : x
  2. Step 2: Convert to fraction form
    19,842,521.03/29,748,642.65 = 9,052,275.83/x
  3. Step 3: Cross multiply
    19,842,521.03x = 29,748,642.65 × 9,052,275.83
  4. Step 4: Simplify right side
    19,842,521.03x = 269,292,918,790,640.78
  5. Step 5: Solve for x
    x = 269,292,918,790,640.78/19,842,521.03
  6. Step 6: Final answer
    x = 13,571,507.29

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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.