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Finding the Fourth Proportional to 8,957.06, 12,347.61 and 8,023.94

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Solution

The fourth proportional to 8,957.06, 12,347.61 and 8,023.94 is: 11,061.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.06 : 12,347.61 = 8,023.94 : x
  2. Step 2: Convert to fraction form
    8,957.06/12,347.61 = 8,023.94/x
  3. Step 3: Cross multiply
    8,957.06x = 12,347.61 × 8,023.94
  4. Step 4: Simplify right side
    8,957.06x = 99,076,481.78
  5. Step 5: Solve for x
    x = 99,076,481.78/8,957.06
  6. Step 6: Final answer
    x = 11,061.27

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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.