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Finding the Fourth Proportional to 46,648.78, 69,870.61 and 38,551.78

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Solution

The fourth proportional to 46,648.78, 69,870.61 and 38,551.78 is: 57,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,648.78 : 69,870.61 = 38,551.78 : x
  2. Step 2: Convert to fraction form
    46,648.78/69,870.61 = 38,551.78/x
  3. Step 3: Cross multiply
    46,648.78x = 69,870.61 × 38,551.78
  4. Step 4: Simplify right side
    46,648.78x = 2,693,636,385.19
  5. Step 5: Solve for x
    x = 2,693,636,385.19/46,648.78
  6. Step 6: Final answer
    x = 57,742.91

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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.