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Finding the Fourth Proportional to 10,584.80, 15,873.95 and 7,318.88

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Solution

The fourth proportional to 10,584.80, 15,873.95 and 7,318.88 is: 10,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,584.80 : 15,873.95 = 7,318.88 : x
  2. Step 2: Convert to fraction form
    10,584.80/15,873.95 = 7,318.88/x
  3. Step 3: Cross multiply
    10,584.80x = 15,873.95 × 7,318.88
  4. Step 4: Simplify right side
    10,584.80x = 116,179,455.81
  5. Step 5: Solve for x
    x = 116,179,455.81/10,584.80
  6. Step 6: Final answer
    x = 10,976.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.