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Finding the Fourth Proportional to 66,896.49, 92,318.05 and 36,681.74

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Solution

The fourth proportional to 66,896.49, 92,318.05 and 36,681.74 is: 50,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,896.49 : 92,318.05 = 36,681.74 : x
  2. Step 2: Convert to fraction form
    66,896.49/92,318.05 = 36,681.74/x
  3. Step 3: Cross multiply
    66,896.49x = 92,318.05 × 36,681.74
  4. Step 4: Simplify right side
    66,896.49x = 3,386,386,637.86
  5. Step 5: Solve for x
    x = 3,386,386,637.86/66,896.49
  6. Step 6: Final answer
    x = 50,621.29

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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.