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Finding the Fourth Proportional to 28,907.40, 43,361.10 and 22,346.40

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Solution

The fourth proportional to 28,907.40, 43,361.10 and 22,346.40 is: 33,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.40 : 43,361.10 = 22,346.40 : x
  2. Step 2: Convert to fraction form
    28,907.40/43,361.10 = 22,346.40/x
  3. Step 3: Cross multiply
    28,907.40x = 43,361.10 × 22,346.40
  4. Step 4: Simplify right side
    28,907.40x = 968,964,485.04
  5. Step 5: Solve for x
    x = 968,964,485.04/28,907.40
  6. Step 6: Final answer
    x = 33,519.60

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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.