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Finding the Fourth Proportional to 58,555.62, 80,806.14 and 31,697.64

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Solution

The fourth proportional to 58,555.62, 80,806.14 and 31,697.64 is: 43,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,555.62 : 80,806.14 = 31,697.64 : x
  2. Step 2: Convert to fraction form
    58,555.62/80,806.14 = 31,697.64/x
  3. Step 3: Cross multiply
    58,555.62x = 80,806.14 × 31,697.64
  4. Step 4: Simplify right side
    58,555.62x = 2,561,363,935.51
  5. Step 5: Solve for x
    x = 2,561,363,935.51/58,555.62
  6. Step 6: Final answer
    x = 43,742.41

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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.