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Finding the Fourth Proportional to 16,145.19, 22,279.93 and 8,974.93

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Solution

The fourth proportional to 16,145.19, 22,279.93 and 8,974.93 is: 12,385.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,145.19 : 22,279.93 = 8,974.93 : x
  2. Step 2: Convert to fraction form
    16,145.19/22,279.93 = 8,974.93/x
  3. Step 3: Cross multiply
    16,145.19x = 22,279.93 × 8,974.93
  4. Step 4: Simplify right side
    16,145.19x = 199,960,812.15
  5. Step 5: Solve for x
    x = 199,960,812.15/16,145.19
  6. Step 6: Final answer
    x = 12,385.16

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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.