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Finding the Fourth Proportional to 14,776.71, 20,391.47 and 8,062.34

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Solution

The fourth proportional to 14,776.71, 20,391.47 and 8,062.34 is: 11,125.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.71 : 20,391.47 = 8,062.34 : x
  2. Step 2: Convert to fraction form
    14,776.71/20,391.47 = 8,062.34/x
  3. Step 3: Cross multiply
    14,776.71x = 20,391.47 × 8,062.34
  4. Step 4: Simplify right side
    14,776.71x = 164,402,821.97
  5. Step 5: Solve for x
    x = 164,402,821.97/14,776.71
  6. Step 6: Final answer
    x = 11,125.81

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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.