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Finding the Fourth Proportional to 28,907.60, 43,393.80 and 22,362.80

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Solution

The fourth proportional to 28,907.60, 43,393.80 and 22,362.80 is: 33,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.60 : 43,393.80 = 22,362.80 : x
  2. Step 2: Convert to fraction form
    28,907.60/43,393.80 = 22,362.80/x
  3. Step 3: Cross multiply
    28,907.60x = 43,393.80 × 22,362.80
  4. Step 4: Simplify right side
    28,907.60x = 970,406,870.64
  5. Step 5: Solve for x
    x = 970,406,870.64/28,907.60
  6. Step 6: Final answer
    x = 33,569.26

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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.