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Finding the Fourth Proportional to 7,883.68, 11,828.90 and 2,952.68

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Solution

The fourth proportional to 7,883.68, 11,828.90 and 2,952.68 is: 4,430.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.68 : 11,828.90 = 2,952.68 : x
  2. Step 2: Convert to fraction form
    7,883.68/11,828.90 = 2,952.68/x
  3. Step 3: Cross multiply
    7,883.68x = 11,828.90 × 2,952.68
  4. Step 4: Simplify right side
    7,883.68x = 34,926,956.45
  5. Step 5: Solve for x
    x = 34,926,956.45/7,883.68
  6. Step 6: Final answer
    x = 4,430.29

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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.