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Finding the Fourth Proportional to 6,302.79, 8,698.20 and 3,614.45

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Solution

The fourth proportional to 6,302.79, 8,698.20 and 3,614.45 is: 4,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,302.79 : 8,698.20 = 3,614.45 : x
  2. Step 2: Convert to fraction form
    6,302.79/8,698.20 = 3,614.45/x
  3. Step 3: Cross multiply
    6,302.79x = 8,698.20 × 3,614.45
  4. Step 4: Simplify right side
    6,302.79x = 31,439,165.50
  5. Step 5: Solve for x
    x = 31,439,165.50/6,302.79
  6. Step 6: Final answer
    x = 4,988.13

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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.