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Finding the Fourth Proportional to 66,775.86, 92,147.18 and 36,555.39

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Solution

The fourth proportional to 66,775.86, 92,147.18 and 36,555.39 is: 50,444.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,775.86 : 92,147.18 = 36,555.39 : x
  2. Step 2: Convert to fraction form
    66,775.86/92,147.18 = 36,555.39/x
  3. Step 3: Cross multiply
    66,775.86x = 92,147.18 × 36,555.39
  4. Step 4: Simplify right side
    66,775.86x = 3,368,476,102.30
  5. Step 5: Solve for x
    x = 3,368,476,102.30/66,775.86
  6. Step 6: Final answer
    x = 50,444.52

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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.