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Finding the Fourth Proportional to 58,481.34, 87,735.90 and 19,038.48

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Solution

The fourth proportional to 58,481.34, 87,735.90 and 19,038.48 is: 28,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,481.34 : 87,735.90 = 19,038.48 : x
  2. Step 2: Convert to fraction form
    58,481.34/87,735.90 = 19,038.48/x
  3. Step 3: Cross multiply
    58,481.34x = 87,735.90 × 19,038.48
  4. Step 4: Simplify right side
    58,481.34x = 1,670,358,177.43
  5. Step 5: Solve for x
    x = 1,670,358,177.43/58,481.34
  6. Step 6: Final answer
    x = 28,562.24

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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.