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Finding the Fourth Proportional to 66,668.30, 92,003.24 and 45,164.63

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Solution

The fourth proportional to 66,668.30, 92,003.24 and 45,164.63 is: 62,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,668.30 : 92,003.24 = 45,164.63 : x
  2. Step 2: Convert to fraction form
    66,668.30/92,003.24 = 45,164.63/x
  3. Step 3: Cross multiply
    66,668.30x = 92,003.24 × 45,164.63
  4. Step 4: Simplify right side
    66,668.30x = 4,155,291,607.56
  5. Step 5: Solve for x
    x = 4,155,291,607.56/66,668.30
  6. Step 6: Final answer
    x = 62,327.85

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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.