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Finding the Fourth Proportional to 18,562.25, 25,615.91 and 10,178.93

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Solution

The fourth proportional to 18,562.25, 25,615.91 and 10,178.93 is: 14,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.25 : 25,615.91 = 10,178.93 : x
  2. Step 2: Convert to fraction form
    18,562.25/25,615.91 = 10,178.93/x
  3. Step 3: Cross multiply
    18,562.25x = 25,615.91 × 10,178.93
  4. Step 4: Simplify right side
    18,562.25x = 260,742,554.78
  5. Step 5: Solve for x
    x = 260,742,554.78/18,562.25
  6. Step 6: Final answer
    x = 14,046.93

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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.