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Finding the Fourth Proportional to 66,992.90, 100,482.42 and 33,699.38

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Solution

The fourth proportional to 66,992.90, 100,482.42 and 33,699.38 is: 50,545.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992.90 : 100,482.42 = 33,699.38 : x
  2. Step 2: Convert to fraction form
    66,992.90/100,482.42 = 33,699.38/x
  3. Step 3: Cross multiply
    66,992.90x = 100,482.42 × 33,699.38
  4. Step 4: Simplify right side
    66,992.90x = 3,386,195,254.90
  5. Step 5: Solve for x
    x = 3,386,195,254.90/66,992.90
  6. Step 6: Final answer
    x = 50,545.58

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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.