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Finding the Fourth Proportional to 58,357.66, 80,509.72 and 43,080.78

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Solution

The fourth proportional to 58,357.66, 80,509.72 and 43,080.78 is: 59,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,357.66 : 80,509.72 = 43,080.78 : x
  2. Step 2: Convert to fraction form
    58,357.66/80,509.72 = 43,080.78/x
  3. Step 3: Cross multiply
    58,357.66x = 80,509.72 × 43,080.78
  4. Step 4: Simplify right side
    58,357.66x = 3,468,421,535.18
  5. Step 5: Solve for x
    x = 3,468,421,535.18/58,357.66
  6. Step 6: Final answer
    x = 59,433.87

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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.