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Finding the Fourth Proportional to 61,639.69, 85,062.87 and 33,345.38

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Solution

The fourth proportional to 61,639.69, 85,062.87 and 33,345.38 is: 46,016.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,639.69 : 85,062.87 = 33,345.38 : x
  2. Step 2: Convert to fraction form
    61,639.69/85,062.87 = 33,345.38/x
  3. Step 3: Cross multiply
    61,639.69x = 85,062.87 × 33,345.38
  4. Step 4: Simplify right side
    61,639.69x = 2,836,453,298.73
  5. Step 5: Solve for x
    x = 2,836,453,298.73/61,639.69
  6. Step 6: Final answer
    x = 46,016.67

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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.