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Finding the Fourth Proportional to 22,193.60, 30,627.11 and 12,762.16

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Solution

The fourth proportional to 22,193.60, 30,627.11 and 12,762.16 is: 17,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,193.60 : 30,627.11 = 12,762.16 : x
  2. Step 2: Convert to fraction form
    22,193.60/30,627.11 = 12,762.16/x
  3. Step 3: Cross multiply
    22,193.60x = 30,627.11 × 12,762.16
  4. Step 4: Simplify right side
    22,193.60x = 390,868,033.50
  5. Step 5: Solve for x
    x = 390,868,033.50/22,193.60
  6. Step 6: Final answer
    x = 17,611.75

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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.