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Finding the Fourth Proportional to 27,667,985.40, 41,501,978.10 and 8,498,711.70

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Solution

The fourth proportional to 27,667,985.40, 41,501,978.10 and 8,498,711.70 is: 12,748,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667,985.40 : 41,501,978.10 = 8,498,711.70 : x
  2. Step 2: Convert to fraction form
    27,667,985.40/41,501,978.10 = 8,498,711.70/x
  3. Step 3: Cross multiply
    27,667,985.40x = 41,501,978.10 × 8,498,711.70
  4. Step 4: Simplify right side
    27,667,985.40x = 352,713,346,851,613.75
  5. Step 5: Solve for x
    x = 352,713,346,851,613.75/27,667,985.40
  6. Step 6: Final answer
    x = 12,748,067.55

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1.5x scale

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.