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Finding the Fourth Proportional to 7,690.35, 11,548.58 and 7,295.79

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Solution

The fourth proportional to 7,690.35, 11,548.58 and 7,295.79 is: 10,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.35 : 11,548.58 = 7,295.79 : x
  2. Step 2: Convert to fraction form
    7,690.35/11,548.58 = 7,295.79/x
  3. Step 3: Cross multiply
    7,690.35x = 11,548.58 × 7,295.79
  4. Step 4: Simplify right side
    7,690.35x = 84,255,978.00
  5. Step 5: Solve for x
    x = 84,255,978.00/7,690.35
  6. Step 6: Final answer
    x = 10,956.07

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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.