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Finding the Fourth Proportional to 8,766.48, 13,119.46 and 8,047.20

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Solution

The fourth proportional to 8,766.48, 13,119.46 and 8,047.20 is: 12,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.48 : 13,119.46 = 8,047.20 : x
  2. Step 2: Convert to fraction form
    8,766.48/13,119.46 = 8,047.20/x
  3. Step 3: Cross multiply
    8,766.48x = 13,119.46 × 8,047.20
  4. Step 4: Simplify right side
    8,766.48x = 105,574,918.51
  5. Step 5: Solve for x
    x = 105,574,918.51/8,766.48
  6. Step 6: Final answer
    x = 12,043.02

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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.