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Finding the Fourth Proportional to 58,010.45, 87,015.74 and 15,890.90

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Solution

The fourth proportional to 58,010.45, 87,015.74 and 15,890.90 is: 23,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,010.45 : 87,015.74 = 15,890.90 : x
  2. Step 2: Convert to fraction form
    58,010.45/87,015.74 = 15,890.90/x
  3. Step 3: Cross multiply
    58,010.45x = 87,015.74 × 15,890.90
  4. Step 4: Simplify right side
    58,010.45x = 1,382,758,244.95
  5. Step 5: Solve for x
    x = 1,382,758,244.95/58,010.45
  6. Step 6: Final answer
    x = 23,836.37

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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.