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Finding the Fourth Proportional to 89,905, 134,879.38 and 29,933.32

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Solution

The fourth proportional to 89,905, 134,879.38 and 29,933.32 is: 44,907.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,905 : 134,879.38 = 29,933.32 : x
  2. Step 2: Convert to fraction form
    89,905/134,879.38 = 29,933.32/x
  3. Step 3: Cross multiply
    89,905x = 134,879.38 × 29,933.32
  4. Step 4: Simplify right side
    89,905x = 4,037,387,642.94
  5. Step 5: Solve for x
    x = 4,037,387,642.94/89,905
  6. Step 6: Final answer
    x = 44,907.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.