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Finding the Fourth Proportional to 8,345.50, 11,520.95 and 4,808.02

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Solution

The fourth proportional to 8,345.50, 11,520.95 and 4,808.02 is: 6,637.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.50 : 11,520.95 = 4,808.02 : x
  2. Step 2: Convert to fraction form
    8,345.50/11,520.95 = 4,808.02/x
  3. Step 3: Cross multiply
    8,345.50x = 11,520.95 × 4,808.02
  4. Step 4: Simplify right side
    8,345.50x = 55,392,958.02
  5. Step 5: Solve for x
    x = 55,392,958.02/8,345.50
  6. Step 6: Final answer
    x = 6,637.46

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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.