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Finding the Fourth Proportional to 10,059.12, 15,090.30 and 3,132

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Solution

The fourth proportional to 10,059.12, 15,090.30 and 3,132 is: 4,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,059.12 : 15,090.30 = 3,132 : x
  2. Step 2: Convert to fraction form
    10,059.12/15,090.30 = 3,132/x
  3. Step 3: Cross multiply
    10,059.12x = 15,090.30 × 3,132
  4. Step 4: Simplify right side
    10,059.12x = 47,262,819.60
  5. Step 5: Solve for x
    x = 47,262,819.60/10,059.12
  6. Step 6: Final answer
    x = 4,698.50

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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.