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Finding the Fourth Proportional to 10,897.80, 16,346.52 and 4,741.80

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Solution

The fourth proportional to 10,897.80, 16,346.52 and 4,741.80 is: 7,112.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.80 : 16,346.52 = 4,741.80 : x
  2. Step 2: Convert to fraction form
    10,897.80/16,346.52 = 4,741.80/x
  3. Step 3: Cross multiply
    10,897.80x = 16,346.52 × 4,741.80
  4. Step 4: Simplify right side
    10,897.80x = 77,511,928.54
  5. Step 5: Solve for x
    x = 77,511,928.54/10,897.80
  6. Step 6: Final answer
    x = 7,112.62

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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.