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Finding the Fourth Proportional to 66,845.84, 92,232.29 and 38,156.34

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Solution

The fourth proportional to 66,845.84, 92,232.29 and 38,156.34 is: 52,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,845.84 : 92,232.29 = 38,156.34 : x
  2. Step 2: Convert to fraction form
    66,845.84/92,232.29 = 38,156.34/x
  3. Step 3: Cross multiply
    66,845.84x = 92,232.29 × 38,156.34
  4. Step 4: Simplify right side
    66,845.84x = 3,519,246,711.61
  5. Step 5: Solve for x
    x = 3,519,246,711.61/66,845.84
  6. Step 6: Final answer
    x = 52,647.21

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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.