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Finding the Fourth Proportional to 66,199.50, 91,359.56 and 37,130.58

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Solution

The fourth proportional to 66,199.50, 91,359.56 and 37,130.58 is: 51,242.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.50 : 91,359.56 = 37,130.58 : x
  2. Step 2: Convert to fraction form
    66,199.50/91,359.56 = 37,130.58/x
  3. Step 3: Cross multiply
    66,199.50x = 91,359.56 × 37,130.58
  4. Step 4: Simplify right side
    66,199.50x = 3,392,233,544.17
  5. Step 5: Solve for x
    x = 3,392,233,544.17/66,199.50
  6. Step 6: Final answer
    x = 51,242.59

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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.