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Finding the Fourth Proportional to 44,651.52, 66,994.56 and 21,280.32

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Solution

The fourth proportional to 44,651.52, 66,994.56 and 21,280.32 is: 31,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,651.52 : 66,994.56 = 21,280.32 : x
  2. Step 2: Convert to fraction form
    44,651.52/66,994.56 = 21,280.32/x
  3. Step 3: Cross multiply
    44,651.52x = 66,994.56 × 21,280.32
  4. Step 4: Simplify right side
    44,651.52x = 1,425,665,675.06
  5. Step 5: Solve for x
    x = 1,425,665,675.06/44,651.52
  6. Step 6: Final answer
    x = 31,928.72

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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.