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Finding the Fourth Proportional to 61,778.76, 85,254.84 and 33,484.56

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Solution

The fourth proportional to 61,778.76, 85,254.84 and 33,484.56 is: 46,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,778.76 : 85,254.84 = 33,484.56 : x
  2. Step 2: Convert to fraction form
    61,778.76/85,254.84 = 33,484.56/x
  3. Step 3: Cross multiply
    61,778.76x = 85,254.84 × 33,484.56
  4. Step 4: Simplify right side
    61,778.76x = 2,854,720,805.27
  5. Step 5: Solve for x
    x = 2,854,720,805.27/61,778.76
  6. Step 6: Final answer
    x = 46,208.77

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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.