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Finding the Fourth Proportional to 58,120.58, 80,185.77 and 37,989.08

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Solution

The fourth proportional to 58,120.58, 80,185.77 and 37,989.08 is: 52,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,120.58 : 80,185.77 = 37,989.08 : x
  2. Step 2: Convert to fraction form
    58,120.58/80,185.77 = 37,989.08/x
  3. Step 3: Cross multiply
    58,120.58x = 80,185.77 × 37,989.08
  4. Step 4: Simplify right side
    58,120.58x = 3,046,183,631.39
  5. Step 5: Solve for x
    x = 3,046,183,631.39/58,120.58
  6. Step 6: Final answer
    x = 52,411.45

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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.