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Finding the Fourth Proportional to 22,663.76, 33,966.86 and 12,808.58

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Solution

The fourth proportional to 22,663.76, 33,966.86 and 12,808.58 is: 19,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,663.76 : 33,966.86 = 12,808.58 : x
  2. Step 2: Convert to fraction form
    22,663.76/33,966.86 = 12,808.58/x
  3. Step 3: Cross multiply
    22,663.76x = 33,966.86 × 12,808.58
  4. Step 4: Simplify right side
    22,663.76x = 435,067,009.78
  5. Step 5: Solve for x
    x = 435,067,009.78/22,663.76
  6. Step 6: Final answer
    x = 19,196.60

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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.