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Finding the Fourth Proportional to 20,567.88, 30,838.86 and 17,448.98

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Solution

The fourth proportional to 20,567.88, 30,838.86 and 17,448.98 is: 26,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.88 : 30,838.86 = 17,448.98 : x
  2. Step 2: Convert to fraction form
    20,567.88/30,838.86 = 17,448.98/x
  3. Step 3: Cross multiply
    20,567.88x = 30,838.86 × 17,448.98
  4. Step 4: Simplify right side
    20,567.88x = 538,106,497.17
  5. Step 5: Solve for x
    x = 538,106,497.17/20,567.88
  6. Step 6: Final answer
    x = 26,162.47

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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.