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Finding the Fourth Proportional to 6,994.75, 9,652.68 and 3,970.45

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Solution

The fourth proportional to 6,994.75, 9,652.68 and 3,970.45 is: 5,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,994.75 : 9,652.68 = 3,970.45 : x
  2. Step 2: Convert to fraction form
    6,994.75/9,652.68 = 3,970.45/x
  3. Step 3: Cross multiply
    6,994.75x = 9,652.68 × 3,970.45
  4. Step 4: Simplify right side
    6,994.75x = 38,325,483.31
  5. Step 5: Solve for x
    x = 38,325,483.31/6,994.75
  6. Step 6: Final answer
    x = 5,479.18

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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.