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Finding the Fourth Proportional to 66,683.84, 92,020.32 and 36,870.08

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Solution

The fourth proportional to 66,683.84, 92,020.32 and 36,870.08 is: 50,878.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,683.84 : 92,020.32 = 36,870.08 : x
  2. Step 2: Convert to fraction form
    66,683.84/92,020.32 = 36,870.08/x
  3. Step 3: Cross multiply
    66,683.84x = 92,020.32 × 36,870.08
  4. Step 4: Simplify right side
    66,683.84x = 3,392,796,560.03
  5. Step 5: Solve for x
    x = 3,392,796,560.03/66,683.84
  6. Step 6: Final answer
    x = 50,878.84

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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.