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Finding the Fourth Proportional to 35,335.17, 48,748.64 and 20,219.76

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Solution

The fourth proportional to 35,335.17, 48,748.64 and 20,219.76 is: 27,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,335.17 : 48,748.64 = 20,219.76 : x
  2. Step 2: Convert to fraction form
    35,335.17/48,748.64 = 20,219.76/x
  3. Step 3: Cross multiply
    35,335.17x = 48,748.64 × 20,219.76
  4. Step 4: Simplify right side
    35,335.17x = 985,685,700.03
  5. Step 5: Solve for x
    x = 985,685,700.03/35,335.17
  6. Step 6: Final answer
    x = 27,895.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.