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Finding the Fourth Proportional to 14,706.88, 20,295.62 and 7,992.50

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Solution

The fourth proportional to 14,706.88, 20,295.62 and 7,992.50 is: 11,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,706.88 : 20,295.62 = 7,992.50 : x
  2. Step 2: Convert to fraction form
    14,706.88/20,295.62 = 7,992.50/x
  3. Step 3: Cross multiply
    14,706.88x = 20,295.62 × 7,992.50
  4. Step 4: Simplify right side
    14,706.88x = 162,212,773.61
  5. Step 5: Solve for x
    x = 162,212,773.61/14,706.88
  6. Step 6: Final answer
    x = 11,029.72

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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.