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Finding the Fourth Proportional to 46,210.82, 68,981.90 and 40,605.76

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Solution

The fourth proportional to 46,210.82, 68,981.90 and 40,605.76 is: 60,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,210.82 : 68,981.90 = 40,605.76 : x
  2. Step 2: Convert to fraction form
    46,210.82/68,981.90 = 40,605.76/x
  3. Step 3: Cross multiply
    46,210.82x = 68,981.90 × 40,605.76
  4. Step 4: Simplify right side
    46,210.82x = 2,801,062,475.74
  5. Step 5: Solve for x
    x = 2,801,062,475.74/46,210.82
  6. Step 6: Final answer
    x = 60,614.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.