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Finding the Fourth Proportional to 27,479.78, 37,917.76 and 16,158.98

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Solution

The fourth proportional to 27,479.78, 37,917.76 and 16,158.98 is: 22,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479.78 : 37,917.76 = 16,158.98 : x
  2. Step 2: Convert to fraction form
    27,479.78/37,917.76 = 16,158.98/x
  3. Step 3: Cross multiply
    27,479.78x = 37,917.76 × 16,158.98
  4. Step 4: Simplify right side
    27,479.78x = 612,712,325.48
  5. Step 5: Solve for x
    x = 612,712,325.48/27,479.78
  6. Step 6: Final answer
    x = 22,296.84

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1.5x scale

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.