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Finding the Fourth Proportional to 66,987.41, 100,327.08 and 37,339.59

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Solution

The fourth proportional to 66,987.41, 100,327.08 and 37,339.59 is: 55,923.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.41 : 100,327.08 = 37,339.59 : x
  2. Step 2: Convert to fraction form
    66,987.41/100,327.08 = 37,339.59/x
  3. Step 3: Cross multiply
    66,987.41x = 100,327.08 × 37,339.59
  4. Step 4: Simplify right side
    66,987.41x = 3,746,172,033.10
  5. Step 5: Solve for x
    x = 3,746,172,033.10/66,987.41
  6. Step 6: Final answer
    x = 55,923.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.