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Finding the Fourth Proportional to 64,170.45, 88,552.31 and 35,490.38

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Solution

The fourth proportional to 64,170.45, 88,552.31 and 35,490.38 is: 48,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,170.45 : 88,552.31 = 35,490.38 : x
  2. Step 2: Convert to fraction form
    64,170.45/88,552.31 = 35,490.38/x
  3. Step 3: Cross multiply
    64,170.45x = 88,552.31 × 35,490.38
  4. Step 4: Simplify right side
    64,170.45x = 3,142,754,511.56
  5. Step 5: Solve for x
    x = 3,142,754,511.56/64,170.45
  6. Step 6: Final answer
    x = 48,975.10

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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.