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Finding the Fourth Proportional to 15,706.99, 23,555.48 and 5,174.69

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Solution

The fourth proportional to 15,706.99, 23,555.48 and 5,174.69 is: 7,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,706.99 : 23,555.48 = 5,174.69 : x
  2. Step 2: Convert to fraction form
    15,706.99/23,555.48 = 5,174.69/x
  3. Step 3: Cross multiply
    15,706.99x = 23,555.48 × 5,174.69
  4. Step 4: Simplify right side
    15,706.99x = 121,892,206.81
  5. Step 5: Solve for x
    x = 121,892,206.81/15,706.99
  6. Step 6: Final answer
    x = 7,760.38

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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.