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Finding the Fourth Proportional to 61,722.80, 85,177.04 and 33,427.92

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Solution

The fourth proportional to 61,722.80, 85,177.04 and 33,427.92 is: 46,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,722.80 : 85,177.04 = 33,427.92 : x
  2. Step 2: Convert to fraction form
    61,722.80/85,177.04 = 33,427.92/x
  3. Step 3: Cross multiply
    61,722.80x = 85,177.04 × 33,427.92
  4. Step 4: Simplify right side
    61,722.80x = 2,847,291,278.96
  5. Step 5: Solve for x
    x = 2,847,291,278.96/61,722.80
  6. Step 6: Final answer
    x = 46,130.30

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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.