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Finding the Fourth Proportional to 45,866.80, 68,800.20 and 14,705.20

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Solution

The fourth proportional to 45,866.80, 68,800.20 and 14,705.20 is: 22,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,866.80 : 68,800.20 = 14,705.20 : x
  2. Step 2: Convert to fraction form
    45,866.80/68,800.20 = 14,705.20/x
  3. Step 3: Cross multiply
    45,866.80x = 68,800.20 × 14,705.20
  4. Step 4: Simplify right side
    45,866.80x = 1,011,720,701.04
  5. Step 5: Solve for x
    x = 1,011,720,701.04/45,866.80
  6. Step 6: Final answer
    x = 22,057.80

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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.