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Finding the Fourth Proportional to 7,874.04, 10,865.70 and 4,337.04

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Solution

The fourth proportional to 7,874.04, 10,865.70 and 4,337.04 is: 5,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.04 : 10,865.70 = 4,337.04 : x
  2. Step 2: Convert to fraction form
    7,874.04/10,865.70 = 4,337.04/x
  3. Step 3: Cross multiply
    7,874.04x = 10,865.70 × 4,337.04
  4. Step 4: Simplify right side
    7,874.04x = 47,124,975.53
  5. Step 5: Solve for x
    x = 47,124,975.53/7,874.04
  6. Step 6: Final answer
    x = 5,984.85

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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.