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Finding the Fourth Proportional to 16,615.65, 22,916.64 and 10,647.88

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Solution

The fourth proportional to 16,615.65, 22,916.64 and 10,647.88 is: 14,685.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615.65 : 22,916.64 = 10,647.88 : x
  2. Step 2: Convert to fraction form
    16,615.65/22,916.64 = 10,647.88/x
  3. Step 3: Cross multiply
    16,615.65x = 22,916.64 × 10,647.88
  4. Step 4: Simplify right side
    16,615.65x = 244,013,555.47
  5. Step 5: Solve for x
    x = 244,013,555.47/16,615.65
  6. Step 6: Final answer
    x = 14,685.76

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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.