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Finding the Fourth Proportional to 18,658.36, 25,748.08 and 10,700.07

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Solution

The fourth proportional to 18,658.36, 25,748.08 and 10,700.07 is: 14,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.36 : 25,748.08 = 10,700.07 : x
  2. Step 2: Convert to fraction form
    18,658.36/25,748.08 = 10,700.07/x
  3. Step 3: Cross multiply
    18,658.36x = 25,748.08 × 10,700.07
  4. Step 4: Simplify right side
    18,658.36x = 275,506,223.23
  5. Step 5: Solve for x
    x = 275,506,223.23/18,658.36
  6. Step 6: Final answer
    x = 14,765.84

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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.