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Finding the Fourth Proportional to 5,059,990.96, 6,982,952.08 and 2,768,151.72

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Solution

The fourth proportional to 5,059,990.96, 6,982,952.08 and 2,768,151.72 is: 3,820,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059,990.96 : 6,982,952.08 = 2,768,151.72 : x
  2. Step 2: Convert to fraction form
    5,059,990.96/6,982,952.08 = 2,768,151.72/x
  3. Step 3: Cross multiply
    5,059,990.96x = 6,982,952.08 × 2,768,151.72
  4. Step 4: Simplify right side
    5,059,990.96x = 19,329,870,810,929.58
  5. Step 5: Solve for x
    x = 19,329,870,810,929.58/5,059,990.96
  6. Step 6: Final answer
    x = 3,820,139.40

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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.