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Finding the Fourth Proportional to 56,671.80, 85,010.90 and 17,230.20

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Solution

The fourth proportional to 56,671.80, 85,010.90 and 17,230.20 is: 25,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,671.80 : 85,010.90 = 17,230.20 : x
  2. Step 2: Convert to fraction form
    56,671.80/85,010.90 = 17,230.20/x
  3. Step 3: Cross multiply
    56,671.80x = 85,010.90 × 17,230.20
  4. Step 4: Simplify right side
    56,671.80x = 1,464,754,809.18
  5. Step 5: Solve for x
    x = 1,464,754,809.18/56,671.80
  6. Step 6: Final answer
    x = 25,846.27

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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.