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Finding the Fourth Proportional to 92,774.91, 128,029.41 and 52,487.85

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Solution

The fourth proportional to 92,774.91, 128,029.41 and 52,487.85 is: 72,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,774.91 : 128,029.41 = 52,487.85 : x
  2. Step 2: Convert to fraction form
    92,774.91/128,029.41 = 52,487.85/x
  3. Step 3: Cross multiply
    92,774.91x = 128,029.41 × 52,487.85
  4. Step 4: Simplify right side
    92,774.91x = 6,719,988,467.67
  5. Step 5: Solve for x
    x = 6,719,988,467.67/92,774.91
  6. Step 6: Final answer
    x = 72,433.25

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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.