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Finding the Fourth Proportional to 11,753.92, 17,630.95 and 2,988.84

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Solution

The fourth proportional to 11,753.92, 17,630.95 and 2,988.84 is: 4,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,753.92 : 17,630.95 = 2,988.84 : x
  2. Step 2: Convert to fraction form
    11,753.92/17,630.95 = 2,988.84/x
  3. Step 3: Cross multiply
    11,753.92x = 17,630.95 × 2,988.84
  4. Step 4: Simplify right side
    11,753.92x = 52,696,088.60
  5. Step 5: Solve for x
    x = 52,696,088.60/11,753.92
  6. Step 6: Final answer
    x = 4,483.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.