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Finding the Fourth Proportional to 34,880.71, 48,135.13 and 18,965.17

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Solution

The fourth proportional to 34,880.71, 48,135.13 and 18,965.17 is: 26,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,880.71 : 48,135.13 = 18,965.17 : x
  2. Step 2: Convert to fraction form
    34,880.71/48,135.13 = 18,965.17/x
  3. Step 3: Cross multiply
    34,880.71x = 48,135.13 × 18,965.17
  4. Step 4: Simplify right side
    34,880.71x = 912,890,587.92
  5. Step 5: Solve for x
    x = 912,890,587.92/34,880.71
  6. Step 6: Final answer
    x = 26,171.79

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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.