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Finding the Fourth Proportional to 28,606.96, 42,913.33 and 7,548.46

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Solution

The fourth proportional to 28,606.96, 42,913.33 and 7,548.46 is: 11,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.96 : 42,913.33 = 7,548.46 : x
  2. Step 2: Convert to fraction form
    28,606.96/42,913.33 = 7,548.46/x
  3. Step 3: Cross multiply
    28,606.96x = 42,913.33 × 7,548.46
  4. Step 4: Simplify right side
    28,606.96x = 323,929,554.97
  5. Step 5: Solve for x
    x = 323,929,554.97/28,606.96
  6. Step 6: Final answer
    x = 11,323.45

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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.