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Finding the Fourth Proportional to 7,909.30, 10,914.78 and 4,552.93

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Solution

The fourth proportional to 7,909.30, 10,914.78 and 4,552.93 is: 6,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.30 : 10,914.78 = 4,552.93 : x
  2. Step 2: Convert to fraction form
    7,909.30/10,914.78 = 4,552.93/x
  3. Step 3: Cross multiply
    7,909.30x = 10,914.78 × 4,552.93
  4. Step 4: Simplify right side
    7,909.30x = 49,694,229.31
  5. Step 5: Solve for x
    x = 49,694,229.31/7,909.30
  6. Step 6: Final answer
    x = 6,283.01

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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.