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Finding the Fourth Proportional to 10,407.99, 15,611.61 and 4,564.65

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Solution

The fourth proportional to 10,407.99, 15,611.61 and 4,564.65 is: 6,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.99 : 15,611.61 = 4,564.65 : x
  2. Step 2: Convert to fraction form
    10,407.99/15,611.61 = 4,564.65/x
  3. Step 3: Cross multiply
    10,407.99x = 15,611.61 × 4,564.65
  4. Step 4: Simplify right side
    10,407.99x = 71,261,535.59
  5. Step 5: Solve for x
    x = 71,261,535.59/10,407.99
  6. Step 6: Final answer
    x = 6,846.81

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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.