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Finding the Fourth Proportional to 45,404.84, 67,993.02 and 28,714.28

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Solution

The fourth proportional to 45,404.84, 67,993.02 and 28,714.28 is: 42,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,404.84 : 67,993.02 = 28,714.28 : x
  2. Step 2: Convert to fraction form
    45,404.84/67,993.02 = 28,714.28/x
  3. Step 3: Cross multiply
    45,404.84x = 67,993.02 × 28,714.28
  4. Step 4: Simplify right side
    45,404.84x = 1,952,370,614.33
  5. Step 5: Solve for x
    x = 1,952,370,614.33/45,404.84
  6. Step 6: Final answer
    x = 42,999.17

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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.