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Finding the Fourth Proportional to 9,579.97, 14,368.74 and 7,118.38

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Solution

The fourth proportional to 9,579.97, 14,368.74 and 7,118.38 is: 10,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.97 : 14,368.74 = 7,118.38 : x
  2. Step 2: Convert to fraction form
    9,579.97/14,368.74 = 7,118.38/x
  3. Step 3: Cross multiply
    9,579.97x = 14,368.74 × 7,118.38
  4. Step 4: Simplify right side
    9,579.97x = 102,282,151.44
  5. Step 5: Solve for x
    x = 102,282,151.44/9,579.97
  6. Step 6: Final answer
    x = 10,676.67

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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.