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Finding the Fourth Proportional to 66,675.17, 92,018.16 and 39,817.46

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Solution

The fourth proportional to 66,675.17, 92,018.16 and 39,817.46 is: 54,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,675.17 : 92,018.16 = 39,817.46 : x
  2. Step 2: Convert to fraction form
    66,675.17/92,018.16 = 39,817.46/x
  3. Step 3: Cross multiply
    66,675.17x = 92,018.16 × 39,817.46
  4. Step 4: Simplify right side
    66,675.17x = 3,663,928,944.98
  5. Step 5: Solve for x
    x = 3,663,928,944.98/66,675.17
  6. Step 6: Final answer
    x = 54,951.93

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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.