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Finding the Fourth Proportional to 61,645.68, 85,071.33 and 34,789.32

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Solution

The fourth proportional to 61,645.68, 85,071.33 and 34,789.32 is: 48,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,645.68 : 85,071.33 = 34,789.32 : x
  2. Step 2: Convert to fraction form
    61,645.68/85,071.33 = 34,789.32/x
  3. Step 3: Cross multiply
    61,645.68x = 85,071.33 × 34,789.32
  4. Step 4: Simplify right side
    61,645.68x = 2,959,573,722.20
  5. Step 5: Solve for x
    x = 2,959,573,722.20/61,645.68
  6. Step 6: Final answer
    x = 48,009.43

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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.