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Finding the Fourth Proportional to 40,303.29, 60,454.86 and 10,721.16

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Solution

The fourth proportional to 40,303.29, 60,454.86 and 10,721.16 is: 16,081.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,303.29 : 60,454.86 = 10,721.16 : x
  2. Step 2: Convert to fraction form
    40,303.29/60,454.86 = 10,721.16/x
  3. Step 3: Cross multiply
    40,303.29x = 60,454.86 × 10,721.16
  4. Step 4: Simplify right side
    40,303.29x = 648,146,226.84
  5. Step 5: Solve for x
    x = 648,146,226.84/40,303.29
  6. Step 6: Final answer
    x = 16,081.72

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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.