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Finding the Fourth Proportional to 31,569.36, 47,337.54 and 9,379.68

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Solution

The fourth proportional to 31,569.36, 47,337.54 and 9,379.68 is: 14,064.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,569.36 : 47,337.54 = 9,379.68 : x
  2. Step 2: Convert to fraction form
    31,569.36/47,337.54 = 9,379.68/x
  3. Step 3: Cross multiply
    31,569.36x = 47,337.54 × 9,379.68
  4. Step 4: Simplify right side
    31,569.36x = 444,010,977.19
  5. Step 5: Solve for x
    x = 444,010,977.19/31,569.36
  6. Step 6: Final answer
    x = 14,064.62

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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.