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Finding the Fourth Proportional to 6,457.86, 9,670.38 and 4,259.93

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Solution

The fourth proportional to 6,457.86, 9,670.38 and 4,259.93 is: 6,379.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.86 : 9,670.38 = 4,259.93 : x
  2. Step 2: Convert to fraction form
    6,457.86/9,670.38 = 4,259.93/x
  3. Step 3: Cross multiply
    6,457.86x = 9,670.38 × 4,259.93
  4. Step 4: Simplify right side
    6,457.86x = 41,195,141.87
  5. Step 5: Solve for x
    x = 41,195,141.87/6,457.86
  6. Step 6: Final answer
    x = 6,379.07

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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.