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Finding the Fourth Proportional to 66,890.32, 92,308.36 and 37,082.32

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Solution

The fourth proportional to 66,890.32, 92,308.36 and 37,082.32 is: 51,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,890.32 : 92,308.36 = 37,082.32 : x
  2. Step 2: Convert to fraction form
    66,890.32/92,308.36 = 37,082.32/x
  3. Step 3: Cross multiply
    66,890.32x = 92,308.36 × 37,082.32
  4. Step 4: Simplify right side
    66,890.32x = 3,423,008,144.20
  5. Step 5: Solve for x
    x = 3,423,008,144.20/66,890.32
  6. Step 6: Final answer
    x = 51,173.45

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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.