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Finding the Fourth Proportional to 7,259.76, 10,888.16 and 2,579.68

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Solution

The fourth proportional to 7,259.76, 10,888.16 and 2,579.68 is: 3,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.76 : 10,888.16 = 2,579.68 : x
  2. Step 2: Convert to fraction form
    7,259.76/10,888.16 = 2,579.68/x
  3. Step 3: Cross multiply
    7,259.76x = 10,888.16 × 2,579.68
  4. Step 4: Simplify right side
    7,259.76x = 28,087,969.30
  5. Step 5: Solve for x
    x = 28,087,969.30/7,259.76
  6. Step 6: Final answer
    x = 3,868.99

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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.