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Finding the Fourth Proportional to 23,920.40, 35,857.17 and 8,916.54

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Solution

The fourth proportional to 23,920.40, 35,857.17 and 8,916.54 is: 13,366.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,920.40 : 35,857.17 = 8,916.54 : x
  2. Step 2: Convert to fraction form
    23,920.40/35,857.17 = 8,916.54/x
  3. Step 3: Cross multiply
    23,920.40x = 35,857.17 × 8,916.54
  4. Step 4: Simplify right side
    23,920.40x = 319,721,890.59
  5. Step 5: Solve for x
    x = 319,721,890.59/23,920.40
  6. Step 6: Final answer
    x = 13,366.08

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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.