Home / 49,520.08-74,279.04-12,080.48

Finding the Fourth Proportional to 49,520.08, 74,279.04 and 12,080.48

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Solution

The fourth proportional to 49,520.08, 74,279.04 and 12,080.48 is: 18,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,520.08 : 74,279.04 = 12,080.48 : x
  2. Step 2: Convert to fraction form
    49,520.08/74,279.04 = 12,080.48/x
  3. Step 3: Cross multiply
    49,520.08x = 74,279.04 × 12,080.48
  4. Step 4: Simplify right side
    49,520.08x = 897,326,457.14
  5. Step 5: Solve for x
    x = 897,326,457.14/49,520.08
  6. Step 6: Final answer
    x = 18,120.46

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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.