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Finding the Fourth Proportional to 14,920.86, 22,385.92 and 6,156.48

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Solution

The fourth proportional to 14,920.86, 22,385.92 and 6,156.48 is: 9,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.86 : 22,385.92 = 6,156.48 : x
  2. Step 2: Convert to fraction form
    14,920.86/22,385.92 = 6,156.48/x
  3. Step 3: Cross multiply
    14,920.86x = 22,385.92 × 6,156.48
  4. Step 4: Simplify right side
    14,920.86x = 137,818,468.76
  5. Step 5: Solve for x
    x = 137,818,468.76/14,920.86
  6. Step 6: Final answer
    x = 9,236.63

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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.