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Finding the Fourth Proportional to 66,809.82, 92,153.25 and 42,966.66

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Solution

The fourth proportional to 66,809.82, 92,153.25 and 42,966.66 is: 59,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,809.82 : 92,153.25 = 42,966.66 : x
  2. Step 2: Convert to fraction form
    66,809.82/92,153.25 = 42,966.66/x
  3. Step 3: Cross multiply
    66,809.82x = 92,153.25 × 42,966.66
  4. Step 4: Simplify right side
    66,809.82x = 3,959,517,360.65
  5. Step 5: Solve for x
    x = 3,959,517,360.65/66,809.82
  6. Step 6: Final answer
    x = 59,265.50

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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.