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Finding the Fourth Proportional to 18,293.42, 25,245.42 and 10,335.47

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Solution

The fourth proportional to 18,293.42, 25,245.42 and 10,335.47 is: 14,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.42 : 25,245.42 = 10,335.47 : x
  2. Step 2: Convert to fraction form
    18,293.42/25,245.42 = 10,335.47/x
  3. Step 3: Cross multiply
    18,293.42x = 25,245.42 × 10,335.47
  4. Step 4: Simplify right side
    18,293.42x = 260,923,344.16
  5. Step 5: Solve for x
    x = 260,923,344.16/18,293.42
  6. Step 6: Final answer
    x = 14,263.23

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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.