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Finding the Fourth Proportional to 22,366.50, 30,866.58 and 12,808.14

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Solution

The fourth proportional to 22,366.50, 30,866.58 and 12,808.14 is: 17,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,366.50 : 30,866.58 = 12,808.14 : x
  2. Step 2: Convert to fraction form
    22,366.50/30,866.58 = 12,808.14/x
  3. Step 3: Cross multiply
    22,366.50x = 30,866.58 × 12,808.14
  4. Step 4: Simplify right side
    22,366.50x = 395,343,477.96
  5. Step 5: Solve for x
    x = 395,343,477.96/22,366.50
  6. Step 6: Final answer
    x = 17,675.70

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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.