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Finding the Fourth Proportional to 22,750.60, 34,125.90 and 20,907.40

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Solution

The fourth proportional to 22,750.60, 34,125.90 and 20,907.40 is: 31,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.60 : 34,125.90 = 20,907.40 : x
  2. Step 2: Convert to fraction form
    22,750.60/34,125.90 = 20,907.40/x
  3. Step 3: Cross multiply
    22,750.60x = 34,125.90 × 20,907.40
  4. Step 4: Simplify right side
    22,750.60x = 713,483,841.66
  5. Step 5: Solve for x
    x = 713,483,841.66/22,750.60
  6. Step 6: Final answer
    x = 31,361.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.