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Finding the Fourth Proportional to 49,696.57, 68,606.65 and 38,340.57

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Solution

The fourth proportional to 49,696.57, 68,606.65 and 38,340.57 is: 52,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,696.57 : 68,606.65 = 38,340.57 : x
  2. Step 2: Convert to fraction form
    49,696.57/68,606.65 = 38,340.57/x
  3. Step 3: Cross multiply
    49,696.57x = 68,606.65 × 38,340.57
  4. Step 4: Simplify right side
    49,696.57x = 2,630,418,066.79
  5. Step 5: Solve for x
    x = 2,630,418,066.79/49,696.57
  6. Step 6: Final answer
    x = 52,929.57

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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.