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Finding the Fourth Proportional to 30,153.71, 41,613.44 and 16,724.06

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Solution

The fourth proportional to 30,153.71, 41,613.44 and 16,724.06 is: 23,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.71 : 41,613.44 = 16,724.06 : x
  2. Step 2: Convert to fraction form
    30,153.71/41,613.44 = 16,724.06/x
  3. Step 3: Cross multiply
    30,153.71x = 41,613.44 × 16,724.06
  4. Step 4: Simplify right side
    30,153.71x = 695,945,667.37
  5. Step 5: Solve for x
    x = 695,945,667.37/30,153.71
  6. Step 6: Final answer
    x = 23,079.94

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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.