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Finding the Fourth Proportional to 14,689.90, 22,020.36 and 9,409.93

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Solution

The fourth proportional to 14,689.90, 22,020.36 and 9,409.93 is: 14,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.90 : 22,020.36 = 9,409.93 : x
  2. Step 2: Convert to fraction form
    14,689.90/22,020.36 = 9,409.93/x
  3. Step 3: Cross multiply
    14,689.90x = 22,020.36 × 9,409.93
  4. Step 4: Simplify right side
    14,689.90x = 207,210,046.17
  5. Step 5: Solve for x
    x = 207,210,046.17/14,689.90
  6. Step 6: Final answer
    x = 14,105.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.