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Finding the Fourth Proportional to 58,405.74, 87,608.61 and 18,966.84

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Solution

The fourth proportional to 58,405.74, 87,608.61 and 18,966.84 is: 28,450.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,405.74 : 87,608.61 = 18,966.84 : x
  2. Step 2: Convert to fraction form
    58,405.74/87,608.61 = 18,966.84/x
  3. Step 3: Cross multiply
    58,405.74x = 87,608.61 × 18,966.84
  4. Step 4: Simplify right side
    58,405.74x = 1,661,658,488.49
  5. Step 5: Solve for x
    x = 1,661,658,488.49/58,405.74
  6. Step 6: Final answer
    x = 28,450.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.