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Finding the Fourth Proportional to 66,724.68, 92,080.01 and 36,510.20

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Solution

The fourth proportional to 66,724.68, 92,080.01 and 36,510.20 is: 50,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,724.68 : 92,080.01 = 36,510.20 : x
  2. Step 2: Convert to fraction form
    66,724.68/92,080.01 = 36,510.20/x
  3. Step 3: Cross multiply
    66,724.68x = 92,080.01 × 36,510.20
  4. Step 4: Simplify right side
    66,724.68x = 3,361,859,581.10
  5. Step 5: Solve for x
    x = 3,361,859,581.10/66,724.68
  6. Step 6: Final answer
    x = 50,384.05

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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.