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Finding the Fourth Proportional to 66,988.80, 92,446.08 and 37,180.80

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Solution

The fourth proportional to 66,988.80, 92,446.08 and 37,180.80 is: 51,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.80 : 92,446.08 = 37,180.80 : x
  2. Step 2: Convert to fraction form
    66,988.80/92,446.08 = 37,180.80/x
  3. Step 3: Cross multiply
    66,988.80x = 92,446.08 × 37,180.80
  4. Step 4: Simplify right side
    66,988.80x = 3,437,219,211.26
  5. Step 5: Solve for x
    x = 3,437,219,211.26/66,988.80
  6. Step 6: Final answer
    x = 51,310.36

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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.