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Finding the Fourth Proportional to 31,969.47, 44,117.00 and 18,539.87

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Solution

The fourth proportional to 31,969.47, 44,117.00 and 18,539.87 is: 25,584.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969.47 : 44,117.00 = 18,539.87 : x
  2. Step 2: Convert to fraction form
    31,969.47/44,117.00 = 18,539.87/x
  3. Step 3: Cross multiply
    31,969.47x = 44,117.00 × 18,539.87
  4. Step 4: Simplify right side
    31,969.47x = 817,923,131.51
  5. Step 5: Solve for x
    x = 817,923,131.51/31,969.47
  6. Step 6: Final answer
    x = 25,584.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.