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Finding the Fourth Proportional to 18,776.54, 25,884.02 and 14,292.48

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Solution

The fourth proportional to 18,776.54, 25,884.02 and 14,292.48 is: 19,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.54 : 25,884.02 = 14,292.48 : x
  2. Step 2: Convert to fraction form
    18,776.54/25,884.02 = 14,292.48/x
  3. Step 3: Cross multiply
    18,776.54x = 25,884.02 × 14,292.48
  4. Step 4: Simplify right side
    18,776.54x = 369,946,970.97
  5. Step 5: Solve for x
    x = 369,946,970.97/18,776.54
  6. Step 6: Final answer
    x = 19,702.61

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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.