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Finding the Fourth Proportional to 60,203.70, 90,361.08 and 30,642.84

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Solution

The fourth proportional to 60,203.70, 90,361.08 and 30,642.84 is: 45,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,203.70 : 90,361.08 = 30,642.84 : x
  2. Step 2: Convert to fraction form
    60,203.70/90,361.08 = 30,642.84/x
  3. Step 3: Cross multiply
    60,203.70x = 90,361.08 × 30,642.84
  4. Step 4: Simplify right side
    60,203.70x = 2,768,920,116.67
  5. Step 5: Solve for x
    x = 2,768,920,116.67/60,203.70
  6. Step 6: Final answer
    x = 45,992.52

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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.