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Finding the Fourth Proportional to 13,898.55, 19,179.98 and 7,525.11

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Solution

The fourth proportional to 13,898.55, 19,179.98 and 7,525.11 is: 10,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.55 : 19,179.98 = 7,525.11 : x
  2. Step 2: Convert to fraction form
    13,898.55/19,179.98 = 7,525.11/x
  3. Step 3: Cross multiply
    13,898.55x = 19,179.98 × 7,525.11
  4. Step 4: Simplify right side
    13,898.55x = 144,331,421.67
  5. Step 5: Solve for x
    x = 144,331,421.67/13,898.55
  6. Step 6: Final answer
    x = 10,384.64

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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.