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Finding the Fourth Proportional to 58,635.54, 80,925.21 and 43,574.40

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Solution

The fourth proportional to 58,635.54, 80,925.21 and 43,574.40 is: 60,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,635.54 : 80,925.21 = 43,574.40 : x
  2. Step 2: Convert to fraction form
    58,635.54/80,925.21 = 43,574.40/x
  3. Step 3: Cross multiply
    58,635.54x = 80,925.21 × 43,574.40
  4. Step 4: Simplify right side
    58,635.54x = 3,526,267,470.62
  5. Step 5: Solve for x
    x = 3,526,267,470.62/58,635.54
  6. Step 6: Final answer
    x = 60,138.74

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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.