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Finding the Fourth Proportional to 36,280.08, 54,410.04 and 9,978.48

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Solution

The fourth proportional to 36,280.08, 54,410.04 and 9,978.48 is: 14,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,280.08 : 54,410.04 = 9,978.48 : x
  2. Step 2: Convert to fraction form
    36,280.08/54,410.04 = 9,978.48/x
  3. Step 3: Cross multiply
    36,280.08x = 54,410.04 × 9,978.48
  4. Step 4: Simplify right side
    36,280.08x = 542,929,495.94
  5. Step 5: Solve for x
    x = 542,929,495.94/36,280.08
  6. Step 6: Final answer
    x = 14,964.95

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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.