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Finding the Fourth Proportional to 10,166.88, 15,239.88 and 5,774.96

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Solution

The fourth proportional to 10,166.88, 15,239.88 and 5,774.96 is: 8,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,166.88 : 15,239.88 = 5,774.96 : x
  2. Step 2: Convert to fraction form
    10,166.88/15,239.88 = 5,774.96/x
  3. Step 3: Cross multiply
    10,166.88x = 15,239.88 × 5,774.96
  4. Step 4: Simplify right side
    10,166.88x = 88,009,697.40
  5. Step 5: Solve for x
    x = 88,009,697.40/10,166.88
  6. Step 6: Final answer
    x = 8,656.51

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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.