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Finding the Fourth Proportional to 7,994,017.80, 11,988,402.30 and 2,944,672.20

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Solution

The fourth proportional to 7,994,017.80, 11,988,402.30 and 2,944,672.20 is: 4,416,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994,017.80 : 11,988,402.30 = 2,944,672.20 : x
  2. Step 2: Convert to fraction form
    7,994,017.80/11,988,402.30 = 2,944,672.20/x
  3. Step 3: Cross multiply
    7,994,017.80x = 11,988,402.30 × 2,944,672.20
  4. Step 4: Simplify right side
    7,994,017.80x = 35,301,914,975,226.06
  5. Step 5: Solve for x
    x = 35,301,914,975,226.06/7,994,017.80
  6. Step 6: Final answer
    x = 4,416,041.58

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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.