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Finding the Fourth Proportional to 61,778.70, 85,259.89 and 34,925.99

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Solution

The fourth proportional to 61,778.70, 85,259.89 and 34,925.99 is: 48,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,778.70 : 85,259.89 = 34,925.99 : x
  2. Step 2: Convert to fraction form
    61,778.70/85,259.89 = 34,925.99/x
  3. Step 3: Cross multiply
    61,778.70x = 85,259.89 × 34,925.99
  4. Step 4: Simplify right side
    61,778.70x = 2,977,785,682.90
  5. Step 5: Solve for x
    x = 2,977,785,682.90/61,778.70
  6. Step 6: Final answer
    x = 48,200.85

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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.