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Finding the Fourth Proportional to 8,929.71, 12,322.95 and 4,951.41

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Solution

The fourth proportional to 8,929.71, 12,322.95 and 4,951.41 is: 6,832.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.71 : 12,322.95 = 4,951.41 : x
  2. Step 2: Convert to fraction form
    8,929.71/12,322.95 = 4,951.41/x
  3. Step 3: Cross multiply
    8,929.71x = 12,322.95 × 4,951.41
  4. Step 4: Simplify right side
    8,929.71x = 61,015,977.86
  5. Step 5: Solve for x
    x = 61,015,977.86/8,929.71
  6. Step 6: Final answer
    x = 6,832.92

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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.