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Finding the Fourth Proportional to 30,888.44, 42,626.01 and 16,741.28

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Solution

The fourth proportional to 30,888.44, 42,626.01 and 16,741.28 is: 23,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,888.44 : 42,626.01 = 16,741.28 : x
  2. Step 2: Convert to fraction form
    30,888.44/42,626.01 = 16,741.28/x
  3. Step 3: Cross multiply
    30,888.44x = 42,626.01 × 16,741.28
  4. Step 4: Simplify right side
    30,888.44x = 713,614,138.04
  5. Step 5: Solve for x
    x = 713,614,138.04/30,888.44
  6. Step 6: Final answer
    x = 23,102.95

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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.