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Finding the Fourth Proportional to 14,718.76, 20,312.13 and 8,004.52

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Solution

The fourth proportional to 14,718.76, 20,312.13 and 8,004.52 is: 11,046.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.76 : 20,312.13 = 8,004.52 : x
  2. Step 2: Convert to fraction form
    14,718.76/20,312.13 = 8,004.52/x
  3. Step 3: Cross multiply
    14,718.76x = 20,312.13 × 8,004.52
  4. Step 4: Simplify right side
    14,718.76x = 162,588,850.83
  5. Step 5: Solve for x
    x = 162,588,850.83/14,718.76
  6. Step 6: Final answer
    x = 11,046.37

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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.