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Finding the Fourth Proportional to 4,709.80, 6,502.98 and 4,126.60

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Solution

The fourth proportional to 4,709.80, 6,502.98 and 4,126.60 is: 5,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.80 : 6,502.98 = 4,126.60 : x
  2. Step 2: Convert to fraction form
    4,709.80/6,502.98 = 4,126.60/x
  3. Step 3: Cross multiply
    4,709.80x = 6,502.98 × 4,126.60
  4. Step 4: Simplify right side
    4,709.80x = 26,835,197.27
  5. Step 5: Solve for x
    x = 26,835,197.27/4,709.80
  6. Step 6: Final answer
    x = 5,697.74

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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.