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Finding the Fourth Proportional to 68,520.19, 94,554 and 38,299.49

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Solution

The fourth proportional to 68,520.19, 94,554 and 38,299.49 is: 52,851.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.19 : 94,554 = 38,299.49 : x
  2. Step 2: Convert to fraction form
    68,520.19/94,554 = 38,299.49/x
  3. Step 3: Cross multiply
    68,520.19x = 94,554 × 38,299.49
  4. Step 4: Simplify right side
    68,520.19x = 3,621,369,977.46
  5. Step 5: Solve for x
    x = 3,621,369,977.46/68,520.19
  6. Step 6: Final answer
    x = 52,851.14

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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.