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Finding the Fourth Proportional to 61,799.48, 85,279.86 and 34,940.28

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Solution

The fourth proportional to 61,799.48, 85,279.86 and 34,940.28 is: 48,215.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,799.48 : 85,279.86 = 34,940.28 : x
  2. Step 2: Convert to fraction form
    61,799.48/85,279.86 = 34,940.28/x
  3. Step 3: Cross multiply
    61,799.48x = 85,279.86 × 34,940.28
  4. Step 4: Simplify right side
    61,799.48x = 2,979,702,186.76
  5. Step 5: Solve for x
    x = 2,979,702,186.76/61,799.48
  6. Step 6: Final answer
    x = 48,215.66

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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.