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Finding the Fourth Proportional to 46,282, 69,423.20 and 11,221.72

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Solution

The fourth proportional to 46,282, 69,423.20 and 11,221.72 is: 16,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,282 : 69,423.20 = 11,221.72 : x
  2. Step 2: Convert to fraction form
    46,282/69,423.20 = 11,221.72/x
  3. Step 3: Cross multiply
    46,282x = 69,423.20 × 11,221.72
  4. Step 4: Simplify right side
    46,282x = 779,047,711.90
  5. Step 5: Solve for x
    x = 779,047,711.90/46,282
  6. Step 6: Final answer
    x = 16,832.63

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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.