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Finding the Fourth Proportional to 5,699.79, 7,868.12 and 3,462.39

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Solution

The fourth proportional to 5,699.79, 7,868.12 and 3,462.39 is: 4,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,699.79 : 7,868.12 = 3,462.39 : x
  2. Step 2: Convert to fraction form
    5,699.79/7,868.12 = 3,462.39/x
  3. Step 3: Cross multiply
    5,699.79x = 7,868.12 × 3,462.39
  4. Step 4: Simplify right side
    5,699.79x = 27,242,482.69
  5. Step 5: Solve for x
    x = 27,242,482.69/5,699.79
  6. Step 6: Final answer
    x = 4,779.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.