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Finding the Fourth Proportional to 5,685.48, 8,537.80 and 3,714.48

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Solution

The fourth proportional to 5,685.48, 8,537.80 and 3,714.48 is: 5,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.48 : 8,537.80 = 3,714.48 : x
  2. Step 2: Convert to fraction form
    5,685.48/8,537.80 = 3,714.48/x
  3. Step 3: Cross multiply
    5,685.48x = 8,537.80 × 3,714.48
  4. Step 4: Simplify right side
    5,685.48x = 31,713,478.06
  5. Step 5: Solve for x
    x = 31,713,478.06/5,685.48
  6. Step 6: Final answer
    x = 5,577.98

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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.