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Finding the Fourth Proportional to 14,124.71, 19,492.04 and 7,751.41

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Solution

The fourth proportional to 14,124.71, 19,492.04 and 7,751.41 is: 10,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,124.71 : 19,492.04 = 7,751.41 : x
  2. Step 2: Convert to fraction form
    14,124.71/19,492.04 = 7,751.41/x
  3. Step 3: Cross multiply
    14,124.71x = 19,492.04 × 7,751.41
  4. Step 4: Simplify right side
    14,124.71x = 151,090,764.42
  5. Step 5: Solve for x
    x = 151,090,764.42/14,124.71
  6. Step 6: Final answer
    x = 10,696.91

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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.