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Finding the Fourth Proportional to 22,043.40, 33,065.10 and 13,295.40

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Solution

The fourth proportional to 22,043.40, 33,065.10 and 13,295.40 is: 19,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.40 : 33,065.10 = 13,295.40 : x
  2. Step 2: Convert to fraction form
    22,043.40/33,065.10 = 13,295.40/x
  3. Step 3: Cross multiply
    22,043.40x = 33,065.10 × 13,295.40
  4. Step 4: Simplify right side
    22,043.40x = 439,613,730.54
  5. Step 5: Solve for x
    x = 439,613,730.54/22,043.40
  6. Step 6: Final answer
    x = 19,943.10

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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.