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Finding the Fourth Proportional to 10,375.84, 14,318.16 and 5,659.84

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Solution

The fourth proportional to 10,375.84, 14,318.16 and 5,659.84 is: 7,810.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.84 : 14,318.16 = 5,659.84 : x
  2. Step 2: Convert to fraction form
    10,375.84/14,318.16 = 5,659.84/x
  3. Step 3: Cross multiply
    10,375.84x = 14,318.16 × 5,659.84
  4. Step 4: Simplify right side
    10,375.84x = 81,038,494.69
  5. Step 5: Solve for x
    x = 81,038,494.69/10,375.84
  6. Step 6: Final answer
    x = 7,810.31

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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.