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Finding the Fourth Proportional to 56,841.85, 78,447.60 and 36,159.69

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Solution

The fourth proportional to 56,841.85, 78,447.60 and 36,159.69 is: 49,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,841.85 : 78,447.60 = 36,159.69 : x
  2. Step 2: Convert to fraction form
    56,841.85/78,447.60 = 36,159.69/x
  3. Step 3: Cross multiply
    56,841.85x = 78,447.60 × 36,159.69
  4. Step 4: Simplify right side
    56,841.85x = 2,836,640,897.24
  5. Step 5: Solve for x
    x = 2,836,640,897.24/56,841.85
  6. Step 6: Final answer
    x = 49,904.09

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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.