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Finding the Fourth Proportional to 3,714.54, 5,571.90 and 1,117.50

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Solution

The fourth proportional to 3,714.54, 5,571.90 and 1,117.50 is: 1,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.54 : 5,571.90 = 1,117.50 : x
  2. Step 2: Convert to fraction form
    3,714.54/5,571.90 = 1,117.50/x
  3. Step 3: Cross multiply
    3,714.54x = 5,571.90 × 1,117.50
  4. Step 4: Simplify right side
    3,714.54x = 6,226,598.25
  5. Step 5: Solve for x
    x = 6,226,598.25/3,714.54
  6. Step 6: Final answer
    x = 1,676.28

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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.