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Finding the Fourth Proportional to 58,415.58, 80,613.58 and 31,558.08

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Solution

The fourth proportional to 58,415.58, 80,613.58 and 31,558.08 is: 43,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,415.58 : 80,613.58 = 31,558.08 : x
  2. Step 2: Convert to fraction form
    58,415.58/80,613.58 = 31,558.08/x
  3. Step 3: Cross multiply
    58,415.58x = 80,613.58 × 31,558.08
  4. Step 4: Simplify right side
    58,415.58x = 2,544,009,806.73
  5. Step 5: Solve for x
    x = 2,544,009,806.73/58,415.58
  6. Step 6: Final answer
    x = 43,550.19

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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.