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Finding the Fourth Proportional to 9,958.99, 13,743.13 and 5,482.14

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Solution

The fourth proportional to 9,958.99, 13,743.13 and 5,482.14 is: 7,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958.99 : 13,743.13 = 5,482.14 : x
  2. Step 2: Convert to fraction form
    9,958.99/13,743.13 = 5,482.14/x
  3. Step 3: Cross multiply
    9,958.99x = 13,743.13 × 5,482.14
  4. Step 4: Simplify right side
    9,958.99x = 75,341,762.70
  5. Step 5: Solve for x
    x = 75,341,762.70/9,958.99
  6. Step 6: Final answer
    x = 7,565.20

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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.