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Finding the Fourth Proportional to 73,077.80, 109,616.70 and 26,332.20

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Solution

The fourth proportional to 73,077.80, 109,616.70 and 26,332.20 is: 39,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,077.80 : 109,616.70 = 26,332.20 : x
  2. Step 2: Convert to fraction form
    73,077.80/109,616.70 = 26,332.20/x
  3. Step 3: Cross multiply
    73,077.80x = 109,616.70 × 26,332.20
  4. Step 4: Simplify right side
    73,077.80x = 2,886,448,867.74
  5. Step 5: Solve for x
    x = 2,886,448,867.74/73,077.80
  6. Step 6: Final answer
    x = 39,498.30

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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.