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Finding the Fourth Proportional to 66,573.93, 91,872.65 and 37,892.18

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Solution

The fourth proportional to 66,573.93, 91,872.65 and 37,892.18 is: 52,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,573.93 : 91,872.65 = 37,892.18 : x
  2. Step 2: Convert to fraction form
    66,573.93/91,872.65 = 37,892.18/x
  3. Step 3: Cross multiply
    66,573.93x = 91,872.65 × 37,892.18
  4. Step 4: Simplify right side
    66,573.93x = 3,481,255,031.10
  5. Step 5: Solve for x
    x = 3,481,255,031.10/66,573.93
  6. Step 6: Final answer
    x = 52,291.57

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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.