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Finding the Fourth Proportional to 68,497, 94,533.54 and 38,690.92

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Solution

The fourth proportional to 68,497, 94,533.54 and 38,690.92 is: 53,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,497 : 94,533.54 = 38,690.92 : x
  2. Step 2: Convert to fraction form
    68,497/94,533.54 = 38,690.92/x
  3. Step 3: Cross multiply
    68,497x = 94,533.54 × 38,690.92
  4. Step 4: Simplify right side
    68,497x = 3,657,589,633.46
  5. Step 5: Solve for x
    x = 3,657,589,633.46/68,497
  6. Step 6: Final answer
    x = 53,397.81

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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.