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Finding the Fourth Proportional to 56,700.88, 85,023.38 and 19,247.28

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Solution

The fourth proportional to 56,700.88, 85,023.38 and 19,247.28 is: 28,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,700.88 : 85,023.38 = 19,247.28 : x
  2. Step 2: Convert to fraction form
    56,700.88/85,023.38 = 19,247.28/x
  3. Step 3: Cross multiply
    56,700.88x = 85,023.38 × 19,247.28
  4. Step 4: Simplify right side
    56,700.88x = 1,636,468,801.41
  5. Step 5: Solve for x
    x = 1,636,468,801.41/56,700.88
  6. Step 6: Final answer
    x = 28,861.44

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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.