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Finding the Fourth Proportional to 16,916.70, 25,367.04 and 5,065.90

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Solution

The fourth proportional to 16,916.70, 25,367.04 and 5,065.90 is: 7,596.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,916.70 : 25,367.04 = 5,065.90 : x
  2. Step 2: Convert to fraction form
    16,916.70/25,367.04 = 5,065.90/x
  3. Step 3: Cross multiply
    16,916.70x = 25,367.04 × 5,065.90
  4. Step 4: Simplify right side
    16,916.70x = 128,506,887.94
  5. Step 5: Solve for x
    x = 128,506,887.94/16,916.70
  6. Step 6: Final answer
    x = 7,596.45

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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.