Home / 48,280.32-72,406.56-13,221.12

Finding the Fourth Proportional to 48,280.32, 72,406.56 and 13,221.12

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Solution

The fourth proportional to 48,280.32, 72,406.56 and 13,221.12 is: 19,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,280.32 : 72,406.56 = 13,221.12 : x
  2. Step 2: Convert to fraction form
    48,280.32/72,406.56 = 13,221.12/x
  3. Step 3: Cross multiply
    48,280.32x = 72,406.56 × 13,221.12
  4. Step 4: Simplify right side
    48,280.32x = 957,295,818.55
  5. Step 5: Solve for x
    x = 957,295,818.55/48,280.32
  6. Step 6: Final answer
    x = 19,827.87

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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.