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Finding the Fourth Proportional to 47,110.60, 70,657.80 and 17,513.20

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Solution

The fourth proportional to 47,110.60, 70,657.80 and 17,513.20 is: 26,266.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,110.60 : 70,657.80 = 17,513.20 : x
  2. Step 2: Convert to fraction form
    47,110.60/70,657.80 = 17,513.20/x
  3. Step 3: Cross multiply
    47,110.60x = 70,657.80 × 17,513.20
  4. Step 4: Simplify right side
    47,110.60x = 1,237,444,182.96
  5. Step 5: Solve for x
    x = 1,237,444,182.96/47,110.60
  6. Step 6: Final answer
    x = 26,266.79

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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.