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Finding the Fourth Proportional to 10,548.60, 15,793.74 and 5,328.96

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Solution

The fourth proportional to 10,548.60, 15,793.74 and 5,328.96 is: 7,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,548.60 : 15,793.74 = 5,328.96 : x
  2. Step 2: Convert to fraction form
    10,548.60/15,793.74 = 5,328.96/x
  3. Step 3: Cross multiply
    10,548.60x = 15,793.74 × 5,328.96
  4. Step 4: Simplify right side
    10,548.60x = 84,164,208.71
  5. Step 5: Solve for x
    x = 84,164,208.71/10,548.60
  6. Step 6: Final answer
    x = 7,978.71

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1.5x scale

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.