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Finding the Fourth Proportional to 15,123.69, 22,685.54 and 4,736.25

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Solution

The fourth proportional to 15,123.69, 22,685.54 and 4,736.25 is: 7,104.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.69 : 22,685.54 = 4,736.25 : x
  2. Step 2: Convert to fraction form
    15,123.69/22,685.54 = 4,736.25/x
  3. Step 3: Cross multiply
    15,123.69x = 22,685.54 × 4,736.25
  4. Step 4: Simplify right side
    15,123.69x = 107,444,365.14
  5. Step 5: Solve for x
    x = 107,444,365.14/15,123.69
  6. Step 6: Final answer
    x = 7,104.38

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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.