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Finding the Fourth Proportional to 22,427.70, 33,629.40 and 9,281.40

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Solution

The fourth proportional to 22,427.70, 33,629.40 and 9,281.40 is: 13,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,427.70 : 33,629.40 = 9,281.40 : x
  2. Step 2: Convert to fraction form
    22,427.70/33,629.40 = 9,281.40/x
  3. Step 3: Cross multiply
    22,427.70x = 33,629.40 × 9,281.40
  4. Step 4: Simplify right side
    22,427.70x = 312,127,913.16
  5. Step 5: Solve for x
    x = 312,127,913.16/22,427.70
  6. Step 6: Final answer
    x = 13,917.07

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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.