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Finding the Fourth Proportional to 50,774.77, 70,071.58 and 30,631.22

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Solution

The fourth proportional to 50,774.77, 70,071.58 and 30,631.22 is: 42,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,774.77 : 70,071.58 = 30,631.22 : x
  2. Step 2: Convert to fraction form
    50,774.77/70,071.58 = 30,631.22/x
  3. Step 3: Cross multiply
    50,774.77x = 70,071.58 × 30,631.22
  4. Step 4: Simplify right side
    50,774.77x = 2,146,377,728.09
  5. Step 5: Solve for x
    x = 2,146,377,728.09/50,774.77
  6. Step 6: Final answer
    x = 42,272.53

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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.