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Finding the Fourth Proportional to 22,912.60, 34,368.90 and 10,438.60

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Solution

The fourth proportional to 22,912.60, 34,368.90 and 10,438.60 is: 15,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,912.60 : 34,368.90 = 10,438.60 : x
  2. Step 2: Convert to fraction form
    22,912.60/34,368.90 = 10,438.60/x
  3. Step 3: Cross multiply
    22,912.60x = 34,368.90 × 10,438.60
  4. Step 4: Simplify right side
    22,912.60x = 358,763,199.54
  5. Step 5: Solve for x
    x = 358,763,199.54/22,912.60
  6. Step 6: Final answer
    x = 15,657.90

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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.