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Finding the Fourth Proportional to 68,589.92, 94,721.52 and 47,423.84

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Solution

The fourth proportional to 68,589.92, 94,721.52 and 47,423.84 is: 65,491.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,589.92 : 94,721.52 = 47,423.84 : x
  2. Step 2: Convert to fraction form
    68,589.92/94,721.52 = 47,423.84/x
  3. Step 3: Cross multiply
    68,589.92x = 94,721.52 × 47,423.84
  4. Step 4: Simplify right side
    68,589.92x = 4,492,058,209.04
  5. Step 5: Solve for x
    x = 4,492,058,209.04/68,589.92
  6. Step 6: Final answer
    x = 65,491.52

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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.