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Finding the Fourth Proportional to 22,291.99, 30,776.94 and 14,348.02

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Solution

The fourth proportional to 22,291.99, 30,776.94 and 14,348.02 is: 19,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.99 : 30,776.94 = 14,348.02 : x
  2. Step 2: Convert to fraction form
    22,291.99/30,776.94 = 14,348.02/x
  3. Step 3: Cross multiply
    22,291.99x = 30,776.94 × 14,348.02
  4. Step 4: Simplify right side
    22,291.99x = 441,588,150.66
  5. Step 5: Solve for x
    x = 441,588,150.66/22,291.99
  6. Step 6: Final answer
    x = 19,809.27

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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.