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Finding the Fourth Proportional to 31,596.80, 47,416.80 and 17,556.80

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Solution

The fourth proportional to 31,596.80, 47,416.80 and 17,556.80 is: 26,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,596.80 : 47,416.80 = 17,556.80 : x
  2. Step 2: Convert to fraction form
    31,596.80/47,416.80 = 17,556.80/x
  3. Step 3: Cross multiply
    31,596.80x = 47,416.80 × 17,556.80
  4. Step 4: Simplify right side
    31,596.80x = 832,487,274.24
  5. Step 5: Solve for x
    x = 832,487,274.24/31,596.80
  6. Step 6: Final answer
    x = 26,347.20

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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.