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Finding the Fourth Proportional to 10,579.54, 15,871.54 and 4,005.58

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Solution

The fourth proportional to 10,579.54, 15,871.54 and 4,005.58 is: 6,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.54 : 15,871.54 = 4,005.58 : x
  2. Step 2: Convert to fraction form
    10,579.54/15,871.54 = 4,005.58/x
  3. Step 3: Cross multiply
    10,579.54x = 15,871.54 × 4,005.58
  4. Step 4: Simplify right side
    10,579.54x = 63,574,723.19
  5. Step 5: Solve for x
    x = 63,574,723.19/10,579.54
  6. Step 6: Final answer
    x = 6,009.21

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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.