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Finding the Fourth Proportional to 8,750.52, 13,120.94 and 5,980.32

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Solution

The fourth proportional to 8,750.52, 13,120.94 and 5,980.32 is: 8,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.52 : 13,120.94 = 5,980.32 : x
  2. Step 2: Convert to fraction form
    8,750.52/13,120.94 = 5,980.32/x
  3. Step 3: Cross multiply
    8,750.52x = 13,120.94 × 5,980.32
  4. Step 4: Simplify right side
    8,750.52x = 78,467,390.00
  5. Step 5: Solve for x
    x = 78,467,390.00/8,750.52
  6. Step 6: Final answer
    x = 8,967.17

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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.