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Finding the Fourth Proportional to 38,402.63, 57,603.95 and 9,218.63

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Solution

The fourth proportional to 38,402.63, 57,603.95 and 9,218.63 is: 13,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402.63 : 57,603.95 = 9,218.63 : x
  2. Step 2: Convert to fraction form
    38,402.63/57,603.95 = 9,218.63/x
  3. Step 3: Cross multiply
    38,402.63x = 57,603.95 × 9,218.63
  4. Step 4: Simplify right side
    38,402.63x = 531,029,167.48
  5. Step 5: Solve for x
    x = 531,029,167.48/38,402.63
  6. Step 6: Final answer
    x = 13,827.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.