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Finding the Fourth Proportional to 68,472.21, 94,491 and 38,262.74

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Solution

The fourth proportional to 68,472.21, 94,491 and 38,262.74 is: 52,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,472.21 : 94,491 = 38,262.74 : x
  2. Step 2: Convert to fraction form
    68,472.21/94,491 = 38,262.74/x
  3. Step 3: Cross multiply
    68,472.21x = 94,491 × 38,262.74
  4. Step 4: Simplify right side
    68,472.21x = 3,615,484,565.34
  5. Step 5: Solve for x
    x = 3,615,484,565.34/68,472.21
  6. Step 6: Final answer
    x = 52,802.22

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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.