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Finding the Fourth Proportional to 11,452.99, 15,805.52 and 10,928.11

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Solution

The fourth proportional to 11,452.99, 15,805.52 and 10,928.11 is: 15,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,452.99 : 15,805.52 = 10,928.11 : x
  2. Step 2: Convert to fraction form
    11,452.99/15,805.52 = 10,928.11/x
  3. Step 3: Cross multiply
    11,452.99x = 15,805.52 × 10,928.11
  4. Step 4: Simplify right side
    11,452.99x = 172,724,461.17
  5. Step 5: Solve for x
    x = 172,724,461.17/11,452.99
  6. Step 6: Final answer
    x = 15,081.17

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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.