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Finding the Fourth Proportional to 16,607.12, 22,916.68 and 9,340.30

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Solution

The fourth proportional to 16,607.12, 22,916.68 and 9,340.30 is: 12,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,607.12 : 22,916.68 = 9,340.30 : x
  2. Step 2: Convert to fraction form
    16,607.12/22,916.68 = 9,340.30/x
  3. Step 3: Cross multiply
    16,607.12x = 22,916.68 × 9,340.30
  4. Step 4: Simplify right side
    16,607.12x = 214,048,731.98
  5. Step 5: Solve for x
    x = 214,048,731.98/16,607.12
  6. Step 6: Final answer
    x = 12,888.97

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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.