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Finding the Fourth Proportional to 66,846.79, 92,228.79 and 38,165.50

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Solution

The fourth proportional to 66,846.79, 92,228.79 and 38,165.50 is: 52,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,846.79 : 92,228.79 = 38,165.50 : x
  2. Step 2: Convert to fraction form
    66,846.79/92,228.79 = 38,165.50/x
  3. Step 3: Cross multiply
    66,846.79x = 92,228.79 × 38,165.50
  4. Step 4: Simplify right side
    66,846.79x = 3,519,957,884.75
  5. Step 5: Solve for x
    x = 3,519,957,884.75/66,846.79
  6. Step 6: Final answer
    x = 52,657.10

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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.