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Finding the Fourth Proportional to 18,593.36, 25,658.88 and 10,210.40

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Solution

The fourth proportional to 18,593.36, 25,658.88 and 10,210.40 is: 14,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.36 : 25,658.88 = 10,210.40 : x
  2. Step 2: Convert to fraction form
    18,593.36/25,658.88 = 10,210.40/x
  3. Step 3: Cross multiply
    18,593.36x = 25,658.88 × 10,210.40
  4. Step 4: Simplify right side
    18,593.36x = 261,987,428.35
  5. Step 5: Solve for x
    x = 261,987,428.35/18,593.36
  6. Step 6: Final answer
    x = 14,090.38

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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.