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Finding the Fourth Proportional to 23,916.87, 35,870.04 and 9,120.60

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Solution

The fourth proportional to 23,916.87, 35,870.04 and 9,120.60 is: 13,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,916.87 : 35,870.04 = 9,120.60 : x
  2. Step 2: Convert to fraction form
    23,916.87/35,870.04 = 9,120.60/x
  3. Step 3: Cross multiply
    23,916.87x = 35,870.04 × 9,120.60
  4. Step 4: Simplify right side
    23,916.87x = 327,156,286.82
  5. Step 5: Solve for x
    x = 327,156,286.82/23,916.87
  6. Step 6: Final answer
    x = 13,678.89

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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.