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Finding the Fourth Proportional to 25,230.30, 37,821.45 and 9,431.10

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Solution

The fourth proportional to 25,230.30, 37,821.45 and 9,431.10 is: 14,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,230.30 : 37,821.45 = 9,431.10 : x
  2. Step 2: Convert to fraction form
    25,230.30/37,821.45 = 9,431.10/x
  3. Step 3: Cross multiply
    25,230.30x = 37,821.45 × 9,431.10
  4. Step 4: Simplify right side
    25,230.30x = 356,697,877.10
  5. Step 5: Solve for x
    x = 356,697,877.10/25,230.30
  6. Step 6: Final answer
    x = 14,137.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.