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Finding the Fourth Proportional to 7,714.60, 11,574.60 and 3,333.40

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Solution

The fourth proportional to 7,714.60, 11,574.60 and 3,333.40 is: 5,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.60 : 11,574.60 = 3,333.40 : x
  2. Step 2: Convert to fraction form
    7,714.60/11,574.60 = 3,333.40/x
  3. Step 3: Cross multiply
    7,714.60x = 11,574.60 × 3,333.40
  4. Step 4: Simplify right side
    7,714.60x = 38,582,771.64
  5. Step 5: Solve for x
    x = 38,582,771.64/7,714.60
  6. Step 6: Final answer
    x = 5,001.27

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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.