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Finding the Fourth Proportional to 70,850.10, 97,772.49 and 39,018.32

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Solution

The fourth proportional to 70,850.10, 97,772.49 and 39,018.32 is: 53,844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,850.10 : 97,772.49 = 39,018.32 : x
  2. Step 2: Convert to fraction form
    70,850.10/97,772.49 = 39,018.32/x
  3. Step 3: Cross multiply
    70,850.10x = 97,772.49 × 39,018.32
  4. Step 4: Simplify right side
    70,850.10x = 3,814,917,813.15
  5. Step 5: Solve for x
    x = 3,814,917,813.15/70,850.10
  6. Step 6: Final answer
    x = 53,844.92

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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.