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Finding the Fourth Proportional to 66,181.66, 91,329.93 and 37,499.15

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Solution

The fourth proportional to 66,181.66, 91,329.93 and 37,499.15 is: 51,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,181.66 : 91,329.93 = 37,499.15 : x
  2. Step 2: Convert to fraction form
    66,181.66/91,329.93 = 37,499.15/x
  3. Step 3: Cross multiply
    66,181.66x = 91,329.93 × 37,499.15
  4. Step 4: Simplify right side
    66,181.66x = 3,424,794,972.88
  5. Step 5: Solve for x
    x = 3,424,794,972.88/66,181.66
  6. Step 6: Final answer
    x = 51,748.40

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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.