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Finding the Fourth Proportional to 22,970.40, 34,455.60 and 22,581.60

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Solution

The fourth proportional to 22,970.40, 34,455.60 and 22,581.60 is: 33,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.40 : 34,455.60 = 22,581.60 : x
  2. Step 2: Convert to fraction form
    22,970.40/34,455.60 = 22,581.60/x
  3. Step 3: Cross multiply
    22,970.40x = 34,455.60 × 22,581.60
  4. Step 4: Simplify right side
    22,970.40x = 778,062,576.96
  5. Step 5: Solve for x
    x = 778,062,576.96/22,970.40
  6. Step 6: Final answer
    x = 33,872.40

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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.