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Finding the Fourth Proportional to 16,618.48, 22,922.06 and 9,898.92

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Solution

The fourth proportional to 16,618.48, 22,922.06 and 9,898.92 is: 13,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.48 : 22,922.06 = 9,898.92 : x
  2. Step 2: Convert to fraction form
    16,618.48/22,922.06 = 9,898.92/x
  3. Step 3: Cross multiply
    16,618.48x = 22,922.06 × 9,898.92
  4. Step 4: Simplify right side
    16,618.48x = 226,903,638.18
  5. Step 5: Solve for x
    x = 226,903,638.18/16,618.48
  6. Step 6: Final answer
    x = 13,653.69

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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.