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Finding the Fourth Proportional to 9,656,616.80, 14,486,674.80 and 4,852,215.20

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Solution

The fourth proportional to 9,656,616.80, 14,486,674.80 and 4,852,215.20 is: 7,279,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,656,616.80 : 14,486,674.80 = 4,852,215.20 : x
  2. Step 2: Convert to fraction form
    9,656,616.80/14,486,674.80 = 4,852,215.20/x
  3. Step 3: Cross multiply
    9,656,616.80x = 14,486,674.80 × 4,852,215.20
  4. Step 4: Simplify right side
    9,656,616.80x = 70,292,463,662,016.97
  5. Step 5: Solve for x
    x = 70,292,463,662,016.97/9,656,616.80
  6. Step 6: Final answer
    x = 7,279,201.93

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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.