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Finding the Fourth Proportional to 29,657.40, 44,436.90 and 20,873.88

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Solution

The fourth proportional to 29,657.40, 44,436.90 and 20,873.88 is: 31,276.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,657.40 : 44,436.90 = 20,873.88 : x
  2. Step 2: Convert to fraction form
    29,657.40/44,436.90 = 20,873.88/x
  3. Step 3: Cross multiply
    29,657.40x = 44,436.90 × 20,873.88
  4. Step 4: Simplify right side
    29,657.40x = 927,570,518.17
  5. Step 5: Solve for x
    x = 927,570,518.17/29,657.40
  6. Step 6: Final answer
    x = 31,276.19

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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.