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Finding the Fourth Proportional to 19,759.60, 29,662.55 and 15,602.41

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Solution

The fourth proportional to 19,759.60, 29,662.55 and 15,602.41 is: 23,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.60 : 29,662.55 = 15,602.41 : x
  2. Step 2: Convert to fraction form
    19,759.60/29,662.55 = 15,602.41/x
  3. Step 3: Cross multiply
    19,759.60x = 29,662.55 × 15,602.41
  4. Step 4: Simplify right side
    19,759.60x = 462,807,266.75
  5. Step 5: Solve for x
    x = 462,807,266.75/19,759.60
  6. Step 6: Final answer
    x = 23,421.89

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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.