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Finding the Fourth Proportional to 15,101.52, 20,832.86 and 10,627.76

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Solution

The fourth proportional to 15,101.52, 20,832.86 and 10,627.76 is: 14,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,101.52 : 20,832.86 = 10,627.76 : x
  2. Step 2: Convert to fraction form
    15,101.52/20,832.86 = 10,627.76/x
  3. Step 3: Cross multiply
    15,101.52x = 20,832.86 × 10,627.76
  4. Step 4: Simplify right side
    15,101.52x = 221,406,532.03
  5. Step 5: Solve for x
    x = 221,406,532.03/15,101.52
  6. Step 6: Final answer
    x = 14,661.21

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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.