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Finding the Fourth Proportional to 67,893.76, 101,840.46 and 38,298.16

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Solution

The fourth proportional to 67,893.76, 101,840.46 and 38,298.16 is: 57,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,893.76 : 101,840.46 = 38,298.16 : x
  2. Step 2: Convert to fraction form
    67,893.76/101,840.46 = 38,298.16/x
  3. Step 3: Cross multiply
    67,893.76x = 101,840.46 × 38,298.16
  4. Step 4: Simplify right side
    67,893.76x = 3,900,302,231.55
  5. Step 5: Solve for x
    x = 3,900,302,231.55/67,893.76
  6. Step 6: Final answer
    x = 57,447.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.