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Finding the Fourth Proportional to 40,503.20, 60,711.60 and 15,533.60

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Solution

The fourth proportional to 40,503.20, 60,711.60 and 15,533.60 is: 23,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,503.20 : 60,711.60 = 15,533.60 : x
  2. Step 2: Convert to fraction form
    40,503.20/60,711.60 = 15,533.60/x
  3. Step 3: Cross multiply
    40,503.20x = 60,711.60 × 15,533.60
  4. Step 4: Simplify right side
    40,503.20x = 943,069,709.76
  5. Step 5: Solve for x
    x = 943,069,709.76/40,503.20
  6. Step 6: Final answer
    x = 23,283.83

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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.