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Finding the Fourth Proportional to 19,248.19, 28,819.03 and 9,867.99

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Solution

The fourth proportional to 19,248.19, 28,819.03 and 9,867.99 is: 14,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.19 : 28,819.03 = 9,867.99 : x
  2. Step 2: Convert to fraction form
    19,248.19/28,819.03 = 9,867.99/x
  3. Step 3: Cross multiply
    19,248.19x = 28,819.03 × 9,867.99
  4. Step 4: Simplify right side
    19,248.19x = 284,385,731.08
  5. Step 5: Solve for x
    x = 284,385,731.08/19,248.19
  6. Step 6: Final answer
    x = 14,774.67

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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.