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Finding the Fourth Proportional to 45,712.80, 68,576.04 and 14,555.04

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Solution

The fourth proportional to 45,712.80, 68,576.04 and 14,555.04 is: 21,834.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,712.80 : 68,576.04 = 14,555.04 : x
  2. Step 2: Convert to fraction form
    45,712.80/68,576.04 = 14,555.04/x
  3. Step 3: Cross multiply
    45,712.80x = 68,576.04 × 14,555.04
  4. Step 4: Simplify right side
    45,712.80x = 998,127,005.24
  5. Step 5: Solve for x
    x = 998,127,005.24/45,712.80
  6. Step 6: Final answer
    x = 21,834.74

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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.