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Finding the Fourth Proportional to 66,920.61, 92,349.81 and 36,705.33

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Solution

The fourth proportional to 66,920.61, 92,349.81 and 36,705.33 is: 50,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,920.61 : 92,349.81 = 36,705.33 : x
  2. Step 2: Convert to fraction form
    66,920.61/92,349.81 = 36,705.33/x
  3. Step 3: Cross multiply
    66,920.61x = 92,349.81 × 36,705.33
  4. Step 4: Simplify right side
    66,920.61x = 3,389,730,251.49
  5. Step 5: Solve for x
    x = 3,389,730,251.49/66,920.61
  6. Step 6: Final answer
    x = 50,653.01

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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.