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Finding the Fourth Proportional to 8,740.76, 12,061.84 and 4,963.43

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Solution

The fourth proportional to 8,740.76, 12,061.84 and 4,963.43 is: 6,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.76 : 12,061.84 = 4,963.43 : x
  2. Step 2: Convert to fraction form
    8,740.76/12,061.84 = 4,963.43/x
  3. Step 3: Cross multiply
    8,740.76x = 12,061.84 × 4,963.43
  4. Step 4: Simplify right side
    8,740.76x = 59,868,098.51
  5. Step 5: Solve for x
    x = 59,868,098.51/8,740.76
  6. Step 6: Final answer
    x = 6,849.30

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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.