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Finding the Fourth Proportional to 18,527.70, 25,550.95 and 17,151.60

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Solution

The fourth proportional to 18,527.70, 25,550.95 and 17,151.60 is: 23,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527.70 : 25,550.95 = 17,151.60 : x
  2. Step 2: Convert to fraction form
    18,527.70/25,550.95 = 17,151.60/x
  3. Step 3: Cross multiply
    18,527.70x = 25,550.95 × 17,151.60
  4. Step 4: Simplify right side
    18,527.70x = 438,239,599.64
  5. Step 5: Solve for x
    x = 438,239,599.64/18,527.70
  6. Step 6: Final answer
    x = 23,653.21

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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.