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Finding the Fourth Proportional to 7,859.42, 10,844.01 and 4,672.53

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Solution

The fourth proportional to 7,859.42, 10,844.01 and 4,672.53 is: 6,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.42 : 10,844.01 = 4,672.53 : x
  2. Step 2: Convert to fraction form
    7,859.42/10,844.01 = 4,672.53/x
  3. Step 3: Cross multiply
    7,859.42x = 10,844.01 × 4,672.53
  4. Step 4: Simplify right side
    7,859.42x = 50,668,962.05
  5. Step 5: Solve for x
    x = 50,668,962.05/7,859.42
  6. Step 6: Final answer
    x = 6,446.91

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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.