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Finding the Fourth Proportional to 14,622.80, 21,923.40 and 8,056.40

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Solution

The fourth proportional to 14,622.80, 21,923.40 and 8,056.40 is: 12,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.80 : 21,923.40 = 8,056.40 : x
  2. Step 2: Convert to fraction form
    14,622.80/21,923.40 = 8,056.40/x
  3. Step 3: Cross multiply
    14,622.80x = 21,923.40 × 8,056.40
  4. Step 4: Simplify right side
    14,622.80x = 176,623,679.76
  5. Step 5: Solve for x
    x = 176,623,679.76/14,622.80
  6. Step 6: Final answer
    x = 12,078.65

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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.