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Finding the Fourth Proportional to 14,048.71, 21,073.05 and 4,187.74

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Solution

The fourth proportional to 14,048.71, 21,073.05 and 4,187.74 is: 6,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,048.71 : 21,073.05 = 4,187.74 : x
  2. Step 2: Convert to fraction form
    14,048.71/21,073.05 = 4,187.74/x
  3. Step 3: Cross multiply
    14,048.71x = 21,073.05 × 4,187.74
  4. Step 4: Simplify right side
    14,048.71x = 88,248,454.41
  5. Step 5: Solve for x
    x = 88,248,454.41/14,048.71
  6. Step 6: Final answer
    x = 6,281.61

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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.