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Finding the Fourth Proportional to 86,693.38, 119,637 and 46,949.38

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Solution

The fourth proportional to 86,693.38, 119,637 and 46,949.38 is: 64,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,693.38 : 119,637 = 46,949.38 : x
  2. Step 2: Convert to fraction form
    86,693.38/119,637 = 46,949.38/x
  3. Step 3: Cross multiply
    86,693.38x = 119,637 × 46,949.38
  4. Step 4: Simplify right side
    86,693.38x = 5,616,882,376.88
  5. Step 5: Solve for x
    x = 5,616,882,376.88/86,693.38
  6. Step 6: Final answer
    x = 64,790.21

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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.