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Finding the Fourth Proportional to 11,307.88, 15,600.90 and 6,591.16

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Solution

The fourth proportional to 11,307.88, 15,600.90 and 6,591.16 is: 9,093.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.88 : 15,600.90 = 6,591.16 : x
  2. Step 2: Convert to fraction form
    11,307.88/15,600.90 = 6,591.16/x
  3. Step 3: Cross multiply
    11,307.88x = 15,600.90 × 6,591.16
  4. Step 4: Simplify right side
    11,307.88x = 102,828,028.04
  5. Step 5: Solve for x
    x = 102,828,028.04/11,307.88
  6. Step 6: Final answer
    x = 9,093.48

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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.