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Finding the Fourth Proportional to 22,703.61, 34,055.52 and 7,912.51

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Solution

The fourth proportional to 22,703.61, 34,055.52 and 7,912.51 is: 11,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.61 : 34,055.52 = 7,912.51 : x
  2. Step 2: Convert to fraction form
    22,703.61/34,055.52 = 7,912.51/x
  3. Step 3: Cross multiply
    22,703.61x = 34,055.52 × 7,912.51
  4. Step 4: Simplify right side
    22,703.61x = 269,464,642.56
  5. Step 5: Solve for x
    x = 269,464,642.56/22,703.61
  6. Step 6: Final answer
    x = 11,868.80

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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.