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Finding the Fourth Proportional to 40,590.87, 55,979.11 and 25,484.94

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Solution

The fourth proportional to 40,590.87, 55,979.11 and 25,484.94 is: 35,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,590.87 : 55,979.11 = 25,484.94 : x
  2. Step 2: Convert to fraction form
    40,590.87/55,979.11 = 25,484.94/x
  3. Step 3: Cross multiply
    40,590.87x = 55,979.11 × 25,484.94
  4. Step 4: Simplify right side
    40,590.87x = 1,426,624,291.46
  5. Step 5: Solve for x
    x = 1,426,624,291.46/40,590.87
  6. Step 6: Final answer
    x = 35,146.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.