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Finding the Fourth Proportional to 25,880.71, 35,733.08 and 19,820.25

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Solution

The fourth proportional to 25,880.71, 35,733.08 and 19,820.25 is: 27,365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.71 : 35,733.08 = 19,820.25 : x
  2. Step 2: Convert to fraction form
    25,880.71/35,733.08 = 19,820.25/x
  3. Step 3: Cross multiply
    25,880.71x = 35,733.08 × 19,820.25
  4. Step 4: Simplify right side
    25,880.71x = 708,238,578.87
  5. Step 5: Solve for x
    x = 708,238,578.87/25,880.71
  6. Step 6: Final answer
    x = 27,365.50

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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.