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Finding the Fourth Proportional to 8,697,723.80, 13,046,585.70 and 7,291,045.40

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Solution

The fourth proportional to 8,697,723.80, 13,046,585.70 and 7,291,045.40 is: 10,936,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697,723.80 : 13,046,585.70 = 7,291,045.40 : x
  2. Step 2: Convert to fraction form
    8,697,723.80/13,046,585.70 = 7,291,045.40/x
  3. Step 3: Cross multiply
    8,697,723.80x = 13,046,585.70 × 7,291,045.40
  4. Step 4: Simplify right side
    8,697,723.80x = 95,123,248,653,690.78
  5. Step 5: Solve for x
    x = 95,123,248,653,690.78/8,697,723.80
  6. Step 6: Final answer
    x = 10,936,568.10

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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.