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Finding the Fourth Proportional to 19,602.27, 29,403.41 and 7,915.59

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Solution

The fourth proportional to 19,602.27, 29,403.41 and 7,915.59 is: 11,873.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.27 : 29,403.41 = 7,915.59 : x
  2. Step 2: Convert to fraction form
    19,602.27/29,403.41 = 7,915.59/x
  3. Step 3: Cross multiply
    19,602.27x = 29,403.41 × 7,915.59
  4. Step 4: Simplify right side
    19,602.27x = 232,745,298.58
  5. Step 5: Solve for x
    x = 232,745,298.58/19,602.27
  6. Step 6: Final answer
    x = 11,873.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.