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Finding the Fourth Proportional to 3,237.70, 4,851.15 and 1,590.70

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Solution

The fourth proportional to 3,237.70, 4,851.15 and 1,590.70 is: 2,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.70 : 4,851.15 = 1,590.70 : x
  2. Step 2: Convert to fraction form
    3,237.70/4,851.15 = 1,590.70/x
  3. Step 3: Cross multiply
    3,237.70x = 4,851.15 × 1,590.70
  4. Step 4: Simplify right side
    3,237.70x = 7,716,724.31
  5. Step 5: Solve for x
    x = 7,716,724.31/3,237.70
  6. Step 6: Final answer
    x = 2,383.40

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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.