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Finding the Fourth Proportional to 66,730.87, 92,085.06 and 36,510.31

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Solution

The fourth proportional to 66,730.87, 92,085.06 and 36,510.31 is: 50,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730.87 : 92,085.06 = 36,510.31 : x
  2. Step 2: Convert to fraction form
    66,730.87/92,085.06 = 36,510.31/x
  3. Step 3: Cross multiply
    66,730.87x = 92,085.06 × 36,510.31
  4. Step 4: Simplify right side
    66,730.87x = 3,362,054,086.97
  5. Step 5: Solve for x
    x = 3,362,054,086.97/66,730.87
  6. Step 6: Final answer
    x = 50,382.29

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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.