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Finding the Fourth Proportional to 66,848.79, 92,231.55 and 38,167.50

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Solution

The fourth proportional to 66,848.79, 92,231.55 and 38,167.50 is: 52,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,848.79 : 92,231.55 = 38,167.50 : x
  2. Step 2: Convert to fraction form
    66,848.79/92,231.55 = 38,167.50/x
  3. Step 3: Cross multiply
    66,848.79x = 92,231.55 × 38,167.50
  4. Step 4: Simplify right side
    66,848.79x = 3,520,247,684.63
  5. Step 5: Solve for x
    x = 3,520,247,684.63/66,848.79
  6. Step 6: Final answer
    x = 52,659.86

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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.