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Finding the Fourth Proportional to 7,900.61, 11,848.46 and 2,352.92

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Solution

The fourth proportional to 7,900.61, 11,848.46 and 2,352.92 is: 3,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.61 : 11,848.46 = 2,352.92 : x
  2. Step 2: Convert to fraction form
    7,900.61/11,848.46 = 2,352.92/x
  3. Step 3: Cross multiply
    7,900.61x = 11,848.46 × 2,352.92
  4. Step 4: Simplify right side
    7,900.61x = 27,878,407.50
  5. Step 5: Solve for x
    x = 27,878,407.50/7,900.61
  6. Step 6: Final answer
    x = 3,528.64

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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.