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Finding the Fourth Proportional to 56,645.60, 84,968.40 and 37,983.20

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Solution

The fourth proportional to 56,645.60, 84,968.40 and 37,983.20 is: 56,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,645.60 : 84,968.40 = 37,983.20 : x
  2. Step 2: Convert to fraction form
    56,645.60/84,968.40 = 37,983.20/x
  3. Step 3: Cross multiply
    56,645.60x = 84,968.40 × 37,983.20
  4. Step 4: Simplify right side
    56,645.60x = 3,227,371,730.88
  5. Step 5: Solve for x
    x = 3,227,371,730.88/56,645.60
  6. Step 6: Final answer
    x = 56,974.80

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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.