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Finding the Fourth Proportional to 61,775.66, 85,248.12 and 33,480.74

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Solution

The fourth proportional to 61,775.66, 85,248.12 and 33,480.74 is: 46,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,775.66 : 85,248.12 = 33,480.74 : x
  2. Step 2: Convert to fraction form
    61,775.66/85,248.12 = 33,480.74/x
  3. Step 3: Cross multiply
    61,775.66x = 85,248.12 × 33,480.74
  4. Step 4: Simplify right side
    61,775.66x = 2,854,170,141.21
  5. Step 5: Solve for x
    x = 2,854,170,141.21/61,775.66
  6. Step 6: Final answer
    x = 46,202.18

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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.