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Finding the Fourth Proportional to 15,068.82, 20,795.96 and 8,696.54

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Solution

The fourth proportional to 15,068.82, 20,795.96 and 8,696.54 is: 12,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.82 : 20,795.96 = 8,696.54 : x
  2. Step 2: Convert to fraction form
    15,068.82/20,795.96 = 8,696.54/x
  3. Step 3: Cross multiply
    15,068.82x = 20,795.96 × 8,696.54
  4. Step 4: Simplify right side
    15,068.82x = 180,852,897.98
  5. Step 5: Solve for x
    x = 180,852,897.98/15,068.82
  6. Step 6: Final answer
    x = 12,001.80

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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.