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Finding the Fourth Proportional to 9,979,952.86, 13,772,344.71 and 5,396,273.02

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Solution

The fourth proportional to 9,979,952.86, 13,772,344.71 and 5,396,273.02 is: 7,446,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979,952.86 : 13,772,344.71 = 5,396,273.02 : x
  2. Step 2: Convert to fraction form
    9,979,952.86/13,772,344.71 = 5,396,273.02/x
  3. Step 3: Cross multiply
    9,979,952.86x = 13,772,344.71 × 5,396,273.02
  4. Step 4: Simplify right side
    9,979,952.86x = 74,319,332,180,712.72
  5. Step 5: Solve for x
    x = 74,319,332,180,712.72/9,979,952.86
  6. Step 6: Final answer
    x = 7,446,862.05

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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.