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Finding the Fourth Proportional to 9,888.53, 14,832.81 and 3,314.75

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Solution

The fourth proportional to 9,888.53, 14,832.81 and 3,314.75 is: 4,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.53 : 14,832.81 = 3,314.75 : x
  2. Step 2: Convert to fraction form
    9,888.53/14,832.81 = 3,314.75/x
  3. Step 3: Cross multiply
    9,888.53x = 14,832.81 × 3,314.75
  4. Step 4: Simplify right side
    9,888.53x = 49,166,982.78
  5. Step 5: Solve for x
    x = 49,166,982.78/9,888.53
  6. Step 6: Final answer
    x = 4,972.13

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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.