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Finding the Fourth Proportional to 6,710.70, 9,261.90 and 4,319.99

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Solution

The fourth proportional to 6,710.70, 9,261.90 and 4,319.99 is: 5,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,710.70 : 9,261.90 = 4,319.99 : x
  2. Step 2: Convert to fraction form
    6,710.70/9,261.90 = 4,319.99/x
  3. Step 3: Cross multiply
    6,710.70x = 9,261.90 × 4,319.99
  4. Step 4: Simplify right side
    6,710.70x = 40,011,269.07
  5. Step 5: Solve for x
    x = 40,011,269.07/6,710.70
  6. Step 6: Final answer
    x = 5,962.31

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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.