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Finding the Fourth Proportional to 31,779.57, 47,669.69 and 9,593.13

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Solution

The fourth proportional to 31,779.57, 47,669.69 and 9,593.13 is: 14,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.57 : 47,669.69 = 9,593.13 : x
  2. Step 2: Convert to fraction form
    31,779.57/47,669.69 = 9,593.13/x
  3. Step 3: Cross multiply
    31,779.57x = 47,669.69 × 9,593.13
  4. Step 4: Simplify right side
    31,779.57x = 457,301,708.99
  5. Step 5: Solve for x
    x = 457,301,708.99/31,779.57
  6. Step 6: Final answer
    x = 14,389.80

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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.