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Finding the Fourth Proportional to 22,176.99, 30,609.52 and 12,751.02

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Solution

The fourth proportional to 22,176.99, 30,609.52 and 12,751.02 is: 17,599.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,176.99 : 30,609.52 = 12,751.02 : x
  2. Step 2: Convert to fraction form
    22,176.99/30,609.52 = 12,751.02/x
  3. Step 3: Cross multiply
    22,176.99x = 30,609.52 × 12,751.02
  4. Step 4: Simplify right side
    22,176.99x = 390,302,569.83
  5. Step 5: Solve for x
    x = 390,302,569.83/22,176.99
  6. Step 6: Final answer
    x = 17,599.44

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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.