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Finding the Fourth Proportional to 12,695.76, 17,497.80 and 10,711.44

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Solution

The fourth proportional to 12,695.76, 17,497.80 and 10,711.44 is: 14,762.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.76 : 17,497.80 = 10,711.44 : x
  2. Step 2: Convert to fraction form
    12,695.76/17,497.80 = 10,711.44/x
  3. Step 3: Cross multiply
    12,695.76x = 17,497.80 × 10,711.44
  4. Step 4: Simplify right side
    12,695.76x = 187,426,634.83
  5. Step 5: Solve for x
    x = 187,426,634.83/12,695.76
  6. Step 6: Final answer
    x = 14,762.93

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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.