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Finding the Fourth Proportional to 7,994.02, 11,992.05 and 4,291.17

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Solution

The fourth proportional to 7,994.02, 11,992.05 and 4,291.17 is: 6,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.02 : 11,992.05 = 4,291.17 : x
  2. Step 2: Convert to fraction form
    7,994.02/11,992.05 = 4,291.17/x
  3. Step 3: Cross multiply
    7,994.02x = 11,992.05 × 4,291.17
  4. Step 4: Simplify right side
    7,994.02x = 51,459,925.20
  5. Step 5: Solve for x
    x = 51,459,925.20/7,994.02
  6. Step 6: Final answer
    x = 6,437.30

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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.