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Finding the Fourth Proportional to 9,319.50, 12,860.91 and 5,593.50

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Solution

The fourth proportional to 9,319.50, 12,860.91 and 5,593.50 is: 7,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.50 : 12,860.91 = 5,593.50 : x
  2. Step 2: Convert to fraction form
    9,319.50/12,860.91 = 5,593.50/x
  3. Step 3: Cross multiply
    9,319.50x = 12,860.91 × 5,593.50
  4. Step 4: Simplify right side
    9,319.50x = 71,937,500.09
  5. Step 5: Solve for x
    x = 71,937,500.09/9,319.50
  6. Step 6: Final answer
    x = 7,719.03

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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.