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Finding the Fourth Proportional to 9,432, 13,016.57 and 5,240.25

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Solution

The fourth proportional to 9,432, 13,016.57 and 5,240.25 is: 7,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,432 : 13,016.57 = 5,240.25 : x
  2. Step 2: Convert to fraction form
    9,432/13,016.57 = 5,240.25/x
  3. Step 3: Cross multiply
    9,432x = 13,016.57 × 5,240.25
  4. Step 4: Simplify right side
    9,432x = 68,210,054.74
  5. Step 5: Solve for x
    x = 68,210,054.74/9,432
  6. Step 6: Final answer
    x = 7,231.77

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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.