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Finding the Fourth Proportional to 58,198.34, 87,291.83 and 18,783.74

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Solution

The fourth proportional to 58,198.34, 87,291.83 and 18,783.74 is: 28,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,198.34 : 87,291.83 = 18,783.74 : x
  2. Step 2: Convert to fraction form
    58,198.34/87,291.83 = 18,783.74/x
  3. Step 3: Cross multiply
    58,198.34x = 87,291.83 × 18,783.74
  4. Step 4: Simplify right side
    58,198.34x = 1,639,666,649.34
  5. Step 5: Solve for x
    x = 1,639,666,649.34/58,198.34
  6. Step 6: Final answer
    x = 28,173.77

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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.