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Finding the Fourth Proportional to 31,392.48, 47,064.96 and 15,603.96

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Solution

The fourth proportional to 31,392.48, 47,064.96 and 15,603.96 is: 23,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.48 : 47,064.96 = 15,603.96 : x
  2. Step 2: Convert to fraction form
    31,392.48/47,064.96 = 15,603.96/x
  3. Step 3: Cross multiply
    31,392.48x = 47,064.96 × 15,603.96
  4. Step 4: Simplify right side
    31,392.48x = 734,399,753.24
  5. Step 5: Solve for x
    x = 734,399,753.24/31,392.48
  6. Step 6: Final answer
    x = 23,394.13

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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.