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Finding the Fourth Proportional to 22,102.79, 30,502.59 and 12,031.59

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Solution

The fourth proportional to 22,102.79, 30,502.59 and 12,031.59 is: 16,604.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,102.79 : 30,502.59 = 12,031.59 : x
  2. Step 2: Convert to fraction form
    22,102.79/30,502.59 = 12,031.59/x
  3. Step 3: Cross multiply
    22,102.79x = 30,502.59 × 12,031.59
  4. Step 4: Simplify right side
    22,102.79x = 366,994,726.08
  5. Step 5: Solve for x
    x = 366,994,726.08/22,102.79
  6. Step 6: Final answer
    x = 16,604.00

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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.