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Finding the Fourth Proportional to 75,807.60, 104,615.28 and 41,817.56

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Solution

The fourth proportional to 75,807.60, 104,615.28 and 41,817.56 is: 57,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,807.60 : 104,615.28 = 41,817.56 : x
  2. Step 2: Convert to fraction form
    75,807.60/104,615.28 = 41,817.56/x
  3. Step 3: Cross multiply
    75,807.60x = 104,615.28 × 41,817.56
  4. Step 4: Simplify right side
    75,807.60x = 4,374,755,748.32
  5. Step 5: Solve for x
    x = 4,374,755,748.32/75,807.60
  6. Step 6: Final answer
    x = 57,708.67

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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.