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Finding the Fourth Proportional to 11,503.88, 17,256.86 and 3,712.84

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Solution

The fourth proportional to 11,503.88, 17,256.86 and 3,712.84 is: 5,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.88 : 17,256.86 = 3,712.84 : x
  2. Step 2: Convert to fraction form
    11,503.88/17,256.86 = 3,712.84/x
  3. Step 3: Cross multiply
    11,503.88x = 17,256.86 × 3,712.84
  4. Step 4: Simplify right side
    11,503.88x = 64,071,960.08
  5. Step 5: Solve for x
    x = 64,071,960.08/11,503.88
  6. Step 6: Final answer
    x = 5,569.60

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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.