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Finding the Fourth Proportional to 18,876.04, 28,313.95 and 4,836.04

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Solution

The fourth proportional to 18,876.04, 28,313.95 and 4,836.04 is: 7,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.04 : 28,313.95 = 4,836.04 : x
  2. Step 2: Convert to fraction form
    18,876.04/28,313.95 = 4,836.04/x
  3. Step 3: Cross multiply
    18,876.04x = 28,313.95 × 4,836.04
  4. Step 4: Simplify right side
    18,876.04x = 136,927,394.76
  5. Step 5: Solve for x
    x = 136,927,394.76/18,876.04
  6. Step 6: Final answer
    x = 7,254.03

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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.