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Finding the Fourth Proportional to 15,045.79, 22,589.39 and 7,655.25

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Solution

The fourth proportional to 15,045.79, 22,589.39 and 7,655.25 is: 11,493.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.79 : 22,589.39 = 7,655.25 : x
  2. Step 2: Convert to fraction form
    15,045.79/22,589.39 = 7,655.25/x
  3. Step 3: Cross multiply
    15,045.79x = 22,589.39 × 7,655.25
  4. Step 4: Simplify right side
    15,045.79x = 172,927,427.80
  5. Step 5: Solve for x
    x = 172,927,427.80/15,045.79
  6. Step 6: Final answer
    x = 11,493.41

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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.