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Finding the Fourth Proportional to 11,073.94, 15,288.95 and 7,101.97

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Solution

The fourth proportional to 11,073.94, 15,288.95 and 7,101.97 is: 9,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,073.94 : 15,288.95 = 7,101.97 : x
  2. Step 2: Convert to fraction form
    11,073.94/15,288.95 = 7,101.97/x
  3. Step 3: Cross multiply
    11,073.94x = 15,288.95 × 7,101.97
  4. Step 4: Simplify right side
    11,073.94x = 108,581,643.76
  5. Step 5: Solve for x
    x = 108,581,643.76/11,073.94
  6. Step 6: Final answer
    x = 9,805.15

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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.