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Finding the Fourth Proportional to 9,907.38, 14,861.88 and 4,974.48

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Solution

The fourth proportional to 9,907.38, 14,861.88 and 4,974.48 is: 7,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.38 : 14,861.88 = 4,974.48 : x
  2. Step 2: Convert to fraction form
    9,907.38/14,861.88 = 4,974.48/x
  3. Step 3: Cross multiply
    9,907.38x = 14,861.88 × 4,974.48
  4. Step 4: Simplify right side
    9,907.38x = 73,930,124.82
  5. Step 5: Solve for x
    x = 73,930,124.82/9,907.38
  6. Step 6: Final answer
    x = 7,462.13

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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.