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Finding the Fourth Proportional to 7,015.15, 10,510.96 and 4,931.43

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Solution

The fourth proportional to 7,015.15, 10,510.96 and 4,931.43 is: 7,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.15 : 10,510.96 = 4,931.43 : x
  2. Step 2: Convert to fraction form
    7,015.15/10,510.96 = 4,931.43/x
  3. Step 3: Cross multiply
    7,015.15x = 10,510.96 × 4,931.43
  4. Step 4: Simplify right side
    7,015.15x = 51,834,063.47
  5. Step 5: Solve for x
    x = 51,834,063.47/7,015.15
  6. Step 6: Final answer
    x = 7,388.87

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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.