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Finding the Fourth Proportional to 92,515, 127,670.72 and 50,073.88

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Solution

The fourth proportional to 92,515, 127,670.72 and 50,073.88 is: 69,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,515 : 127,670.72 = 50,073.88 : x
  2. Step 2: Convert to fraction form
    92,515/127,670.72 = 50,073.88/x
  3. Step 3: Cross multiply
    92,515x = 127,670.72 × 50,073.88
  4. Step 4: Simplify right side
    92,515x = 6,392,968,312.79
  5. Step 5: Solve for x
    x = 6,392,968,312.79/92,515
  6. Step 6: Final answer
    x = 69,101.97

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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.