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Finding the Fourth Proportional to 14,037.84, 21,032.96 and 8,479.50

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Solution

The fourth proportional to 14,037.84, 21,032.96 and 8,479.50 is: 12,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,037.84 : 21,032.96 = 8,479.50 : x
  2. Step 2: Convert to fraction form
    14,037.84/21,032.96 = 8,479.50/x
  3. Step 3: Cross multiply
    14,037.84x = 21,032.96 × 8,479.50
  4. Step 4: Simplify right side
    14,037.84x = 178,348,984.32
  5. Step 5: Solve for x
    x = 178,348,984.32/14,037.84
  6. Step 6: Final answer
    x = 12,704.87

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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.