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Finding the Fourth Proportional to 18,335.50, 25,295.16 and 14,079.22

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Solution

The fourth proportional to 18,335.50, 25,295.16 and 14,079.22 is: 19,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.50 : 25,295.16 = 14,079.22 : x
  2. Step 2: Convert to fraction form
    18,335.50/25,295.16 = 14,079.22/x
  3. Step 3: Cross multiply
    18,335.50x = 25,295.16 × 14,079.22
  4. Step 4: Simplify right side
    18,335.50x = 356,136,122.58
  5. Step 5: Solve for x
    x = 356,136,122.58/18,335.50
  6. Step 6: Final answer
    x = 19,423.31

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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.