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Finding the Fourth Proportional to 64,859, 89,505.42 and 35,051

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Solution

The fourth proportional to 64,859, 89,505.42 and 35,051 is: 48,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,859 : 89,505.42 = 35,051 : x
  2. Step 2: Convert to fraction form
    64,859/89,505.42 = 35,051/x
  3. Step 3: Cross multiply
    64,859x = 89,505.42 × 35,051
  4. Step 4: Simplify right side
    64,859x = 3,137,254,476.42
  5. Step 5: Solve for x
    x = 3,137,254,476.42/64,859
  6. Step 6: Final answer
    x = 48,370.38

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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.