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Finding the Fourth Proportional to 29,428.80, 40,591.17 and 19,354.02

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Solution

The fourth proportional to 29,428.80, 40,591.17 and 19,354.02 is: 26,695.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,428.80 : 40,591.17 = 19,354.02 : x
  2. Step 2: Convert to fraction form
    29,428.80/40,591.17 = 19,354.02/x
  3. Step 3: Cross multiply
    29,428.80x = 40,591.17 × 19,354.02
  4. Step 4: Simplify right side
    29,428.80x = 785,602,236.36
  5. Step 5: Solve for x
    x = 785,602,236.36/29,428.80
  6. Step 6: Final answer
    x = 26,695.02

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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.