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Finding the Fourth Proportional to 15,311.16, 22,945.35 and 8,276.01

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Solution

The fourth proportional to 15,311.16, 22,945.35 and 8,276.01 is: 12,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.16 : 22,945.35 = 8,276.01 : x
  2. Step 2: Convert to fraction form
    15,311.16/22,945.35 = 8,276.01/x
  3. Step 3: Cross multiply
    15,311.16x = 22,945.35 × 8,276.01
  4. Step 4: Simplify right side
    15,311.16x = 189,895,946.05
  5. Step 5: Solve for x
    x = 189,895,946.05/15,311.16
  6. Step 6: Final answer
    x = 12,402.45

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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.