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Finding the Fourth Proportional to 68,472.19, 94,482.21 and 38,253.76

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Solution

The fourth proportional to 68,472.19, 94,482.21 and 38,253.76 is: 52,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,472.19 : 94,482.21 = 38,253.76 : x
  2. Step 2: Convert to fraction form
    68,472.19/94,482.21 = 38,253.76/x
  3. Step 3: Cross multiply
    68,472.19x = 94,482.21 × 38,253.76
  4. Step 4: Simplify right side
    68,472.19x = 3,614,299,785.61
  5. Step 5: Solve for x
    x = 3,614,299,785.61/68,472.19
  6. Step 6: Final answer
    x = 52,784.93

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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.