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Finding the Fourth Proportional to 8,762.35, 12,091.63 and 4,984.96

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Solution

The fourth proportional to 8,762.35, 12,091.63 and 4,984.96 is: 6,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.35 : 12,091.63 = 4,984.96 : x
  2. Step 2: Convert to fraction form
    8,762.35/12,091.63 = 4,984.96/x
  3. Step 3: Cross multiply
    8,762.35x = 12,091.63 × 4,984.96
  4. Step 4: Simplify right side
    8,762.35x = 60,276,291.88
  5. Step 5: Solve for x
    x = 60,276,291.88/8,762.35
  6. Step 6: Final answer
    x = 6,879.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.