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Finding the Fourth Proportional to 29,435.32, 40,619.10 and 16,860.88

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Solution

The fourth proportional to 29,435.32, 40,619.10 and 16,860.88 is: 23,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,435.32 : 40,619.10 = 16,860.88 : x
  2. Step 2: Convert to fraction form
    29,435.32/40,619.10 = 16,860.88/x
  3. Step 3: Cross multiply
    29,435.32x = 40,619.10 × 16,860.88
  4. Step 4: Simplify right side
    29,435.32x = 684,873,770.81
  5. Step 5: Solve for x
    x = 684,873,770.81/29,435.32
  6. Step 6: Final answer
    x = 23,267.07

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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.