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Finding the Fourth Proportional to 18,554.66, 27,802.80 and 14,348.20

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Solution

The fourth proportional to 18,554.66, 27,802.80 and 14,348.20 is: 21,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554.66 : 27,802.80 = 14,348.20 : x
  2. Step 2: Convert to fraction form
    18,554.66/27,802.80 = 14,348.20/x
  3. Step 3: Cross multiply
    18,554.66x = 27,802.80 × 14,348.20
  4. Step 4: Simplify right side
    18,554.66x = 398,920,029.58
  5. Step 5: Solve for x
    x = 398,920,029.58/18,554.66
  6. Step 6: Final answer
    x = 21,499.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.