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Finding the Fourth Proportional to 66,789.55, 92,169.62 and 36,162.55

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Solution

The fourth proportional to 66,789.55, 92,169.62 and 36,162.55 is: 49,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,789.55 : 92,169.62 = 36,162.55 : x
  2. Step 2: Convert to fraction form
    66,789.55/92,169.62 = 36,162.55/x
  3. Step 3: Cross multiply
    66,789.55x = 92,169.62 × 36,162.55
  4. Step 4: Simplify right side
    66,789.55x = 3,333,089,024.38
  5. Step 5: Solve for x
    x = 3,333,089,024.38/66,789.55
  6. Step 6: Final answer
    x = 49,904.35

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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.