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Finding the Fourth Proportional to 72,925.97, 109,389.83 and 20,332.26

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Solution

The fourth proportional to 72,925.97, 109,389.83 and 20,332.26 is: 30,498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,925.97 : 109,389.83 = 20,332.26 : x
  2. Step 2: Convert to fraction form
    72,925.97/109,389.83 = 20,332.26/x
  3. Step 3: Cross multiply
    72,925.97x = 109,389.83 × 20,332.26
  4. Step 4: Simplify right side
    72,925.97x = 2,224,142,363.25
  5. Step 5: Solve for x
    x = 2,224,142,363.25/72,925.97
  6. Step 6: Final answer
    x = 30,498.63

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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.