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Finding the Fourth Proportional to 14,810.82, 20,436.95 and 9,512.82

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Solution

The fourth proportional to 14,810.82, 20,436.95 and 9,512.82 is: 13,126.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.82 : 20,436.95 = 9,512.82 : x
  2. Step 2: Convert to fraction form
    14,810.82/20,436.95 = 9,512.82/x
  3. Step 3: Cross multiply
    14,810.82x = 20,436.95 × 9,512.82
  4. Step 4: Simplify right side
    14,810.82x = 194,413,026.70
  5. Step 5: Solve for x
    x = 194,413,026.70/14,810.82
  6. Step 6: Final answer
    x = 13,126.42

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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.