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Finding the Fourth Proportional to 18,630.41, 25,710.62 and 10,670.94

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Solution

The fourth proportional to 18,630.41, 25,710.62 and 10,670.94 is: 14,726.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.41 : 25,710.62 = 10,670.94 : x
  2. Step 2: Convert to fraction form
    18,630.41/25,710.62 = 10,670.94/x
  3. Step 3: Cross multiply
    18,630.41x = 25,710.62 × 10,670.94
  4. Step 4: Simplify right side
    18,630.41x = 274,356,430.03
  5. Step 5: Solve for x
    x = 274,356,430.03/18,630.41
  6. Step 6: Final answer
    x = 14,726.27

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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.