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Finding the Fourth Proportional to 66,896.64, 92,241.69 and 42,665.19

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Solution

The fourth proportional to 66,896.64, 92,241.69 and 42,665.19 is: 58,829.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,896.64 : 92,241.69 = 42,665.19 : x
  2. Step 2: Convert to fraction form
    66,896.64/92,241.69 = 42,665.19/x
  3. Step 3: Cross multiply
    66,896.64x = 92,241.69 × 42,665.19
  4. Step 4: Simplify right side
    66,896.64x = 3,935,509,229.77
  5. Step 5: Solve for x
    x = 3,935,509,229.77/66,896.64
  6. Step 6: Final answer
    x = 58,829.70

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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.