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Finding the Fourth Proportional to 9,774.67, 13,488.99 and 5,298.41

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Solution

The fourth proportional to 9,774.67, 13,488.99 and 5,298.41 is: 7,311.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,774.67 : 13,488.99 = 5,298.41 : x
  2. Step 2: Convert to fraction form
    9,774.67/13,488.99 = 5,298.41/x
  3. Step 3: Cross multiply
    9,774.67x = 13,488.99 × 5,298.41
  4. Step 4: Simplify right side
    9,774.67x = 71,470,132.06
  5. Step 5: Solve for x
    x = 71,470,132.06/9,774.67
  6. Step 6: Final answer
    x = 7,311.77

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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.