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Finding the Fourth Proportional to 7,063.30, 9,746.93 and 3,919.49

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Solution

The fourth proportional to 7,063.30, 9,746.93 and 3,919.49 is: 5,408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.30 : 9,746.93 = 3,919.49 : x
  2. Step 2: Convert to fraction form
    7,063.30/9,746.93 = 3,919.49/x
  3. Step 3: Cross multiply
    7,063.30x = 9,746.93 × 3,919.49
  4. Step 4: Simplify right side
    7,063.30x = 38,202,994.67
  5. Step 5: Solve for x
    x = 38,202,994.67/7,063.30
  6. Step 6: Final answer
    x = 5,408.66

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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.