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Finding the Fourth Proportional to 14,328.52, 19,770.95 and 7,954.09

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Solution

The fourth proportional to 14,328.52, 19,770.95 and 7,954.09 is: 10,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.52 : 19,770.95 = 7,954.09 : x
  2. Step 2: Convert to fraction form
    14,328.52/19,770.95 = 7,954.09/x
  3. Step 3: Cross multiply
    14,328.52x = 19,770.95 × 7,954.09
  4. Step 4: Simplify right side
    14,328.52x = 157,259,886.14
  5. Step 5: Solve for x
    x = 157,259,886.14/14,328.52
  6. Step 6: Final answer
    x = 10,975.31

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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.