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Finding the Fourth Proportional to 25,099.76, 34,638.65 and 13,769.67

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Solution

The fourth proportional to 25,099.76, 34,638.65 and 13,769.67 is: 19,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,099.76 : 34,638.65 = 13,769.67 : x
  2. Step 2: Convert to fraction form
    25,099.76/34,638.65 = 13,769.67/x
  3. Step 3: Cross multiply
    25,099.76x = 34,638.65 × 13,769.67
  4. Step 4: Simplify right side
    25,099.76x = 476,962,710.90
  5. Step 5: Solve for x
    x = 476,962,710.90/25,099.76
  6. Step 6: Final answer
    x = 19,002.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.