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Finding the Fourth Proportional to 9,590.74, 13,236 and 5,342.20

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Solution

The fourth proportional to 9,590.74, 13,236 and 5,342.20 is: 7,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,590.74 : 13,236 = 5,342.20 : x
  2. Step 2: Convert to fraction form
    9,590.74/13,236 = 5,342.20/x
  3. Step 3: Cross multiply
    9,590.74x = 13,236 × 5,342.20
  4. Step 4: Simplify right side
    9,590.74x = 70,709,359.20
  5. Step 5: Solve for x
    x = 70,709,359.20/9,590.74
  6. Step 6: Final answer
    x = 7,372.67

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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.