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Finding the Fourth Proportional to 11,160.88, 16,808.15 and 10,164.43

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Solution

The fourth proportional to 11,160.88, 16,808.15 and 10,164.43 is: 15,307.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.88 : 16,808.15 = 10,164.43 : x
  2. Step 2: Convert to fraction form
    11,160.88/16,808.15 = 10,164.43/x
  3. Step 3: Cross multiply
    11,160.88x = 16,808.15 × 10,164.43
  4. Step 4: Simplify right side
    11,160.88x = 170,845,129.24
  5. Step 5: Solve for x
    x = 170,845,129.24/11,160.88
  6. Step 6: Final answer
    x = 15,307.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.