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Finding the Fourth Proportional to 25,392.69, 35,059.23 and 15,836.31

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Solution

The fourth proportional to 25,392.69, 35,059.23 and 15,836.31 is: 21,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,392.69 : 35,059.23 = 15,836.31 : x
  2. Step 2: Convert to fraction form
    25,392.69/35,059.23 = 15,836.31/x
  3. Step 3: Cross multiply
    25,392.69x = 35,059.23 × 15,836.31
  4. Step 4: Simplify right side
    25,392.69x = 555,208,834.64
  5. Step 5: Solve for x
    x = 555,208,834.64/25,392.69
  6. Step 6: Final answer
    x = 21,864.91

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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.