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Finding the Fourth Proportional to 14,192.88, 19,586.04 and 7,904.88

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Solution

The fourth proportional to 14,192.88, 19,586.04 and 7,904.88 is: 10,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,192.88 : 19,586.04 = 7,904.88 : x
  2. Step 2: Convert to fraction form
    14,192.88/19,586.04 = 7,904.88/x
  3. Step 3: Cross multiply
    14,192.88x = 19,586.04 × 7,904.88
  4. Step 4: Simplify right side
    14,192.88x = 154,825,295.88
  5. Step 5: Solve for x
    x = 154,825,295.88/14,192.88
  6. Step 6: Final answer
    x = 10,908.66

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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.