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Finding the Fourth Proportional to 32,821.60, 49,232.40 and 18,954.40

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Solution

The fourth proportional to 32,821.60, 49,232.40 and 18,954.40 is: 28,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,821.60 : 49,232.40 = 18,954.40 : x
  2. Step 2: Convert to fraction form
    32,821.60/49,232.40 = 18,954.40/x
  3. Step 3: Cross multiply
    32,821.60x = 49,232.40 × 18,954.40
  4. Step 4: Simplify right side
    32,821.60x = 933,170,602.56
  5. Step 5: Solve for x
    x = 933,170,602.56/32,821.60
  6. Step 6: Final answer
    x = 28,431.60

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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.