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Finding the Fourth Proportional to 14,029.92, 21,041.78 and 5,707.74

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Solution

The fourth proportional to 14,029.92, 21,041.78 and 5,707.74 is: 8,560.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,029.92 : 21,041.78 = 5,707.74 : x
  2. Step 2: Convert to fraction form
    14,029.92/21,041.78 = 5,707.74/x
  3. Step 3: Cross multiply
    14,029.92x = 21,041.78 × 5,707.74
  4. Step 4: Simplify right side
    14,029.92x = 120,101,009.38
  5. Step 5: Solve for x
    x = 120,101,009.38/14,029.92
  6. Step 6: Final answer
    x = 8,560.35

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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.