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Finding the Fourth Proportional to 62,017.29, 85,485.60 and 56,868.84

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Solution

The fourth proportional to 62,017.29, 85,485.60 and 56,868.84 is: 78,388.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,017.29 : 85,485.60 = 56,868.84 : x
  2. Step 2: Convert to fraction form
    62,017.29/85,485.60 = 56,868.84/x
  3. Step 3: Cross multiply
    62,017.29x = 85,485.60 × 56,868.84
  4. Step 4: Simplify right side
    62,017.29x = 4,861,466,908.70
  5. Step 5: Solve for x
    x = 4,861,466,908.70/62,017.29
  6. Step 6: Final answer
    x = 78,388.90

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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.