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Finding the Fourth Proportional to 18,394.34, 25,383.93 and 10,840.98

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Solution

The fourth proportional to 18,394.34, 25,383.93 and 10,840.98 is: 14,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.34 : 25,383.93 = 10,840.98 : x
  2. Step 2: Convert to fraction form
    18,394.34/25,383.93 = 10,840.98/x
  3. Step 3: Cross multiply
    18,394.34x = 25,383.93 × 10,840.98
  4. Step 4: Simplify right side
    18,394.34x = 275,186,677.45
  5. Step 5: Solve for x
    x = 275,186,677.45/18,394.34
  6. Step 6: Final answer
    x = 14,960.40

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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.