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Finding the Fourth Proportional to 56,745.64, 85,124.22 and 21,714.76

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Solution

The fourth proportional to 56,745.64, 85,124.22 and 21,714.76 is: 32,574.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,745.64 : 85,124.22 = 21,714.76 : x
  2. Step 2: Convert to fraction form
    56,745.64/85,124.22 = 21,714.76/x
  3. Step 3: Cross multiply
    56,745.64x = 85,124.22 × 21,714.76
  4. Step 4: Simplify right side
    56,745.64x = 1,848,452,007.49
  5. Step 5: Solve for x
    x = 1,848,452,007.49/56,745.64
  6. Step 6: Final answer
    x = 32,574.34

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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.