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Finding the Fourth Proportional to 8,697,761.70, 13,046,642.55 and 2,713,352.10

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Solution

The fourth proportional to 8,697,761.70, 13,046,642.55 and 2,713,352.10 is: 4,070,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697,761.70 : 13,046,642.55 = 2,713,352.10 : x
  2. Step 2: Convert to fraction form
    8,697,761.70/13,046,642.55 = 2,713,352.10/x
  3. Step 3: Cross multiply
    8,697,761.70x = 13,046,642.55 × 2,713,352.10
  4. Step 4: Simplify right side
    8,697,761.70x = 35,400,134,960,991.86
  5. Step 5: Solve for x
    x = 35,400,134,960,991.86/8,697,761.70
  6. Step 6: Final answer
    x = 4,070,028.15

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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.