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Finding the Fourth Proportional to 16,628.55, 22,952.87 and 9,916.26

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Solution

The fourth proportional to 16,628.55, 22,952.87 and 9,916.26 is: 13,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,628.55 : 22,952.87 = 9,916.26 : x
  2. Step 2: Convert to fraction form
    16,628.55/22,952.87 = 9,916.26/x
  3. Step 3: Cross multiply
    16,628.55x = 22,952.87 × 9,916.26
  4. Step 4: Simplify right side
    16,628.55x = 227,606,626.67
  5. Step 5: Solve for x
    x = 227,606,626.67/16,628.55
  6. Step 6: Final answer
    x = 13,687.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.