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Finding the Fourth Proportional to 40,460.68, 60,705.60 and 20,748.52

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Solution

The fourth proportional to 40,460.68, 60,705.60 and 20,748.52 is: 31,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,460.68 : 60,705.60 = 20,748.52 : x
  2. Step 2: Convert to fraction form
    40,460.68/60,705.60 = 20,748.52/x
  3. Step 3: Cross multiply
    40,460.68x = 60,705.60 × 20,748.52
  4. Step 4: Simplify right side
    40,460.68x = 1,259,551,355.71
  5. Step 5: Solve for x
    x = 1,259,551,355.71/40,460.68
  6. Step 6: Final answer
    x = 31,130.26

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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.