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Finding the Fourth Proportional to 18,285.84, 25,234.92 and 10,328.16

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Solution

The fourth proportional to 18,285.84, 25,234.92 and 10,328.16 is: 14,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.84 : 25,234.92 = 10,328.16 : x
  2. Step 2: Convert to fraction form
    18,285.84/25,234.92 = 10,328.16/x
  3. Step 3: Cross multiply
    18,285.84x = 25,234.92 × 10,328.16
  4. Step 4: Simplify right side
    18,285.84x = 260,630,291.35
  5. Step 5: Solve for x
    x = 260,630,291.35/18,285.84
  6. Step 6: Final answer
    x = 14,253.12

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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.