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Finding the Fourth Proportional to 40,340.70, 60,486.35 and 16,640.91

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Solution

The fourth proportional to 40,340.70, 60,486.35 and 16,640.91 is: 24,951.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,340.70 : 60,486.35 = 16,640.91 : x
  2. Step 2: Convert to fraction form
    40,340.70/60,486.35 = 16,640.91/x
  3. Step 3: Cross multiply
    40,340.70x = 60,486.35 × 16,640.91
  4. Step 4: Simplify right side
    40,340.70x = 1,006,547,823.37
  5. Step 5: Solve for x
    x = 1,006,547,823.37/40,340.70
  6. Step 6: Final answer
    x = 24,951.17

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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.