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Finding the Fourth Proportional to 7,675.40, 11,510.56 and 2,410.40

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Solution

The fourth proportional to 7,675.40, 11,510.56 and 2,410.40 is: 3,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.40 : 11,510.56 = 2,410.40 : x
  2. Step 2: Convert to fraction form
    7,675.40/11,510.56 = 2,410.40/x
  3. Step 3: Cross multiply
    7,675.40x = 11,510.56 × 2,410.40
  4. Step 4: Simplify right side
    7,675.40x = 27,745,053.82
  5. Step 5: Solve for x
    x = 27,745,053.82/7,675.40
  6. Step 6: Final answer
    x = 3,614.80

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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.