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Finding the Fourth Proportional to 5,398,712.90, 8,091,848.55 and 2,201,740.10

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Solution

The fourth proportional to 5,398,712.90, 8,091,848.55 and 2,201,740.10 is: 3,300,073.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398,712.90 : 8,091,848.55 = 2,201,740.10 : x
  2. Step 2: Convert to fraction form
    5,398,712.90/8,091,848.55 = 2,201,740.10/x
  3. Step 3: Cross multiply
    5,398,712.90x = 8,091,848.55 × 2,201,740.10
  4. Step 4: Simplify right side
    5,398,712.90x = 17,816,147,435,661.86
  5. Step 5: Solve for x
    x = 17,816,147,435,661.86/5,398,712.90
  6. Step 6: Final answer
    x = 3,300,073.14

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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.