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Finding the Fourth Proportional to 61,684.12, 85,123.37 and 34,827.76

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Solution

The fourth proportional to 61,684.12, 85,123.37 and 34,827.76 is: 48,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684.12 : 85,123.37 = 34,827.76 : x
  2. Step 2: Convert to fraction form
    61,684.12/85,123.37 = 34,827.76/x
  3. Step 3: Cross multiply
    61,684.12x = 85,123.37 × 34,827.76
  4. Step 4: Simplify right side
    61,684.12x = 2,964,656,300.75
  5. Step 5: Solve for x
    x = 2,964,656,300.75/61,684.12
  6. Step 6: Final answer
    x = 48,061.90

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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.