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Finding the Fourth Proportional to 66,503.36, 99,820.64 and 35,338.56

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Solution

The fourth proportional to 66,503.36, 99,820.64 and 35,338.56 is: 53,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,503.36 : 99,820.64 = 35,338.56 : x
  2. Step 2: Convert to fraction form
    66,503.36/99,820.64 = 35,338.56/x
  3. Step 3: Cross multiply
    66,503.36x = 99,820.64 × 35,338.56
  4. Step 4: Simplify right side
    66,503.36x = 3,527,517,675.88
  5. Step 5: Solve for x
    x = 3,527,517,675.88/66,503.36
  6. Step 6: Final answer
    x = 53,042.70

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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.