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Finding the Fourth Proportional to 10,530.51, 15,798.51 and 3,511.59

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Solution

The fourth proportional to 10,530.51, 15,798.51 and 3,511.59 is: 5,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.51 : 15,798.51 = 3,511.59 : x
  2. Step 2: Convert to fraction form
    10,530.51/15,798.51 = 3,511.59/x
  3. Step 3: Cross multiply
    10,530.51x = 15,798.51 × 3,511.59
  4. Step 4: Simplify right side
    10,530.51x = 55,477,889.73
  5. Step 5: Solve for x
    x = 55,477,889.73/10,530.51
  6. Step 6: Final answer
    x = 5,268.30

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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.