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Finding the Fourth Proportional to 14,841.42, 20,483.06 and 8,553.84

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Solution

The fourth proportional to 14,841.42, 20,483.06 and 8,553.84 is: 11,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.42 : 20,483.06 = 8,553.84 : x
  2. Step 2: Convert to fraction form
    14,841.42/20,483.06 = 8,553.84/x
  3. Step 3: Cross multiply
    14,841.42x = 20,483.06 × 8,553.84
  4. Step 4: Simplify right side
    14,841.42x = 175,208,775.18
  5. Step 5: Solve for x
    x = 175,208,775.18/14,841.42
  6. Step 6: Final answer
    x = 11,805.39

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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.