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Finding the Fourth Proportional to 7,670.98, 10,626.04 and 7,515.46

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Solution

The fourth proportional to 7,670.98, 10,626.04 and 7,515.46 is: 10,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.98 : 10,626.04 = 7,515.46 : x
  2. Step 2: Convert to fraction form
    7,670.98/10,626.04 = 7,515.46/x
  3. Step 3: Cross multiply
    7,670.98x = 10,626.04 × 7,515.46
  4. Step 4: Simplify right side
    7,670.98x = 79,859,541.00
  5. Step 5: Solve for x
    x = 79,859,541.00/7,670.98
  6. Step 6: Final answer
    x = 10,410.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.