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Finding the Fourth Proportional to 14,045.63, 19,383.17 and 7,758

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Solution

The fourth proportional to 14,045.63, 19,383.17 and 7,758 is: 10,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.63 : 19,383.17 = 7,758 : x
  2. Step 2: Convert to fraction form
    14,045.63/19,383.17 = 7,758/x
  3. Step 3: Cross multiply
    14,045.63x = 19,383.17 × 7,758
  4. Step 4: Simplify right side
    14,045.63x = 150,374,594.07
  5. Step 5: Solve for x
    x = 150,374,594.07/14,045.63
  6. Step 6: Final answer
    x = 10,706.15

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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.