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Finding the Fourth Proportional to 12,562.88, 17,336.64 and 6,973.92

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Solution

The fourth proportional to 12,562.88, 17,336.64 and 6,973.92 is: 9,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.88 : 17,336.64 = 6,973.92 : x
  2. Step 2: Convert to fraction form
    12,562.88/17,336.64 = 6,973.92/x
  3. Step 3: Cross multiply
    12,562.88x = 17,336.64 × 6,973.92
  4. Step 4: Simplify right side
    12,562.88x = 120,904,340.43
  5. Step 5: Solve for x
    x = 120,904,340.43/12,562.88
  6. Step 6: Final answer
    x = 9,623.93

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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.