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Finding the Fourth Proportional to 22,038.40, 33,062.46 and 7,246.72

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Solution

The fourth proportional to 22,038.40, 33,062.46 and 7,246.72 is: 10,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,038.40 : 33,062.46 = 7,246.72 : x
  2. Step 2: Convert to fraction form
    22,038.40/33,062.46 = 7,246.72/x
  3. Step 3: Cross multiply
    22,038.40x = 33,062.46 × 7,246.72
  4. Step 4: Simplify right side
    22,038.40x = 239,594,390.13
  5. Step 5: Solve for x
    x = 239,594,390.13/22,038.40
  6. Step 6: Final answer
    x = 10,871.68

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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.