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Finding the Fourth Proportional to 47,307.80, 65,279.97 and 27,159.86

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Solution

The fourth proportional to 47,307.80, 65,279.97 and 27,159.86 is: 37,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,307.80 : 65,279.97 = 27,159.86 : x
  2. Step 2: Convert to fraction form
    47,307.80/65,279.97 = 27,159.86/x
  3. Step 3: Cross multiply
    47,307.80x = 65,279.97 × 27,159.86
  4. Step 4: Simplify right side
    47,307.80x = 1,772,994,519.60
  5. Step 5: Solve for x
    x = 1,772,994,519.60/47,307.80
  6. Step 6: Final answer
    x = 37,477.85

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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.