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Finding the Fourth Proportional to 9,659.64, 14,470.74 and 5,487.06

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Solution

The fourth proportional to 9,659.64, 14,470.74 and 5,487.06 is: 8,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659.64 : 14,470.74 = 5,487.06 : x
  2. Step 2: Convert to fraction form
    9,659.64/14,470.74 = 5,487.06/x
  3. Step 3: Cross multiply
    9,659.64x = 14,470.74 × 5,487.06
  4. Step 4: Simplify right side
    9,659.64x = 79,401,818.62
  5. Step 5: Solve for x
    x = 79,401,818.62/9,659.64
  6. Step 6: Final answer
    x = 8,219.96

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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.