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Finding the Fourth Proportional to 61,801.59, 85,291.50 and 34,948.86

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Solution

The fourth proportional to 61,801.59, 85,291.50 and 34,948.86 is: 48,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,801.59 : 85,291.50 = 34,948.86 : x
  2. Step 2: Convert to fraction form
    61,801.59/85,291.50 = 34,948.86/x
  3. Step 3: Cross multiply
    61,801.59x = 85,291.50 × 34,948.86
  4. Step 4: Simplify right side
    61,801.59x = 2,980,840,692.69
  5. Step 5: Solve for x
    x = 2,980,840,692.69/61,801.59
  6. Step 6: Final answer
    x = 48,232.43

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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.