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Finding the Fourth Proportional to 7,009.93, 10,515 and 3,006.79

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Solution

The fourth proportional to 7,009.93, 10,515 and 3,006.79 is: 4,510.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.93 : 10,515 = 3,006.79 : x
  2. Step 2: Convert to fraction form
    7,009.93/10,515 = 3,006.79/x
  3. Step 3: Cross multiply
    7,009.93x = 10,515 × 3,006.79
  4. Step 4: Simplify right side
    7,009.93x = 31,616,396.85
  5. Step 5: Solve for x
    x = 31,616,396.85/7,009.93
  6. Step 6: Final answer
    x = 4,510.23

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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.