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Finding the Fourth Proportional to 35,491,254.45, 48,978,078.75 and 19,193,730.45

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Solution

The fourth proportional to 35,491,254.45, 48,978,078.75 and 19,193,730.45 is: 26,487,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491,254.45 : 48,978,078.75 = 19,193,730.45 : x
  2. Step 2: Convert to fraction form
    35,491,254.45/48,978,078.75 = 19,193,730.45/x
  3. Step 3: Cross multiply
    35,491,254.45x = 48,978,078.75 × 19,193,730.45
  4. Step 4: Simplify right side
    35,491,254.45x = 940,072,041,486,372.88
  5. Step 5: Solve for x
    x = 940,072,041,486,372.88/35,491,254.45
  6. Step 6: Final answer
    x = 26,487,427.85

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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.