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Finding the Fourth Proportional to 11,486.52, 15,802.18 and 10,994.44

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Solution

The fourth proportional to 11,486.52, 15,802.18 and 10,994.44 is: 15,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.52 : 15,802.18 = 10,994.44 : x
  2. Step 2: Convert to fraction form
    11,486.52/15,802.18 = 10,994.44/x
  3. Step 3: Cross multiply
    11,486.52x = 15,802.18 × 10,994.44
  4. Step 4: Simplify right side
    11,486.52x = 173,736,064.91
  5. Step 5: Solve for x
    x = 173,736,064.91/11,486.52
  6. Step 6: Final answer
    x = 15,125.22

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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.