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Finding the Fourth Proportional to 64,035.90, 88,361.39 and 35,742.78

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Solution

The fourth proportional to 64,035.90, 88,361.39 and 35,742.78 is: 49,320.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,035.90 : 88,361.39 = 35,742.78 : x
  2. Step 2: Convert to fraction form
    64,035.90/88,361.39 = 35,742.78/x
  3. Step 3: Cross multiply
    64,035.90x = 88,361.39 × 35,742.78
  4. Step 4: Simplify right side
    64,035.90x = 3,158,281,544.55
  5. Step 5: Solve for x
    x = 3,158,281,544.55/64,035.90
  6. Step 6: Final answer
    x = 49,320.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.