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Finding the Fourth Proportional to 66,713.84, 92,061.60 and 36,493.28

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Solution

The fourth proportional to 66,713.84, 92,061.60 and 36,493.28 is: 50,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,713.84 : 92,061.60 = 36,493.28 : x
  2. Step 2: Convert to fraction form
    66,713.84/92,061.60 = 36,493.28/x
  3. Step 3: Cross multiply
    66,713.84x = 92,061.60 × 36,493.28
  4. Step 4: Simplify right side
    66,713.84x = 3,359,629,746.05
  5. Step 5: Solve for x
    x = 3,359,629,746.05/66,713.84
  6. Step 6: Final answer
    x = 50,358.81

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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.