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Finding the Fourth Proportional to 9,936.12, 13,711.98 and 5,460.12

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Solution

The fourth proportional to 9,936.12, 13,711.98 and 5,460.12 is: 7,535.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936.12 : 13,711.98 = 5,460.12 : x
  2. Step 2: Convert to fraction form
    9,936.12/13,711.98 = 5,460.12/x
  3. Step 3: Cross multiply
    9,936.12x = 13,711.98 × 5,460.12
  4. Step 4: Simplify right side
    9,936.12x = 74,869,056.24
  5. Step 5: Solve for x
    x = 74,869,056.24/9,936.12
  6. Step 6: Final answer
    x = 7,535.04

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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.