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Finding the Fourth Proportional to 10,435.65, 15,656.19 and 3,039.94

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Solution

The fourth proportional to 10,435.65, 15,656.19 and 3,039.94 is: 4,560.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.65 : 15,656.19 = 3,039.94 : x
  2. Step 2: Convert to fraction form
    10,435.65/15,656.19 = 3,039.94/x
  3. Step 3: Cross multiply
    10,435.65x = 15,656.19 × 3,039.94
  4. Step 4: Simplify right side
    10,435.65x = 47,593,878.23
  5. Step 5: Solve for x
    x = 47,593,878.23/10,435.65
  6. Step 6: Final answer
    x = 4,560.70

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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.