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Finding the Fourth Proportional to 14,838.76, 20,477.52 and 8,124.44

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Solution

The fourth proportional to 14,838.76, 20,477.52 and 8,124.44 is: 11,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,838.76 : 20,477.52 = 8,124.44 : x
  2. Step 2: Convert to fraction form
    14,838.76/20,477.52 = 8,124.44/x
  3. Step 3: Cross multiply
    14,838.76x = 20,477.52 × 8,124.44
  4. Step 4: Simplify right side
    14,838.76x = 166,368,382.59
  5. Step 5: Solve for x
    x = 166,368,382.59/14,838.76
  6. Step 6: Final answer
    x = 11,211.74

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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.