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Finding the Fourth Proportional to 22,000,530.80, 32,987,674.20 and 13,486,977.20

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Solution

The fourth proportional to 22,000,530.80, 32,987,674.20 and 13,486,977.20 is: 20,222,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,000,530.80 : 32,987,674.20 = 13,486,977.20 : x
  2. Step 2: Convert to fraction form
    22,000,530.80/32,987,674.20 = 13,486,977.20/x
  3. Step 3: Cross multiply
    22,000,530.80x = 32,987,674.20 × 13,486,977.20
  4. Step 4: Simplify right side
    22,000,530.80x = 444,904,009,816,428.19
  5. Step 5: Solve for x
    x = 444,904,009,816,428.19/22,000,530.80
  6. Step 6: Final answer
    x = 20,222,421.63

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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.