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Finding the Fourth Proportional to 61,587.58, 84,990.60 and 33,293.20

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Solution

The fourth proportional to 61,587.58, 84,990.60 and 33,293.20 is: 45,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,587.58 : 84,990.60 = 33,293.20 : x
  2. Step 2: Convert to fraction form
    61,587.58/84,990.60 = 33,293.20/x
  3. Step 3: Cross multiply
    61,587.58x = 84,990.60 × 33,293.20
  4. Step 4: Simplify right side
    61,587.58x = 2,829,609,043.92
  5. Step 5: Solve for x
    x = 2,829,609,043.92/61,587.58
  6. Step 6: Final answer
    x = 45,944.48

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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.