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Finding the Fourth Proportional to 81,492.66, 112,460.27 and 47,524.70

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Solution

The fourth proportional to 81,492.66, 112,460.27 and 47,524.70 is: 65,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492.66 : 112,460.27 = 47,524.70 : x
  2. Step 2: Convert to fraction form
    81,492.66/112,460.27 = 47,524.70/x
  3. Step 3: Cross multiply
    81,492.66x = 112,460.27 × 47,524.70
  4. Step 4: Simplify right side
    81,492.66x = 5,344,640,993.63
  5. Step 5: Solve for x
    x = 5,344,640,993.63/81,492.66
  6. Step 6: Final answer
    x = 65,584.32

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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.