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Finding the Fourth Proportional to 11,100.84, 15,319.08 and 6,132.84

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Solution

The fourth proportional to 11,100.84, 15,319.08 and 6,132.84 is: 8,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.84 : 15,319.08 = 6,132.84 : x
  2. Step 2: Convert to fraction form
    11,100.84/15,319.08 = 6,132.84/x
  3. Step 3: Cross multiply
    11,100.84x = 15,319.08 × 6,132.84
  4. Step 4: Simplify right side
    11,100.84x = 93,949,466.59
  5. Step 5: Solve for x
    x = 93,949,466.59/11,100.84
  6. Step 6: Final answer
    x = 8,463.28

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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.