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Finding the Fourth Proportional to 17,218.99, 23,763.91 and 10,509.11

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Solution

The fourth proportional to 17,218.99, 23,763.91 and 10,509.11 is: 14,503.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.99 : 23,763.91 = 10,509.11 : x
  2. Step 2: Convert to fraction form
    17,218.99/23,763.91 = 10,509.11/x
  3. Step 3: Cross multiply
    17,218.99x = 23,763.91 × 10,509.11
  4. Step 4: Simplify right side
    17,218.99x = 249,737,544.22
  5. Step 5: Solve for x
    x = 249,737,544.22/17,218.99
  6. Step 6: Final answer
    x = 14,503.61

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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.