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Finding the Fourth Proportional to 6,278.64, 9,416.67 and 5,966.40

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Solution

The fourth proportional to 6,278.64, 9,416.67 and 5,966.40 is: 8,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.64 : 9,416.67 = 5,966.40 : x
  2. Step 2: Convert to fraction form
    6,278.64/9,416.67 = 5,966.40/x
  3. Step 3: Cross multiply
    6,278.64x = 9,416.67 × 5,966.40
  4. Step 4: Simplify right side
    6,278.64x = 56,183,619.89
  5. Step 5: Solve for x
    x = 56,183,619.89/6,278.64
  6. Step 6: Final answer
    x = 8,948.37

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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.