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Finding the Fourth Proportional to 9,834.70, 13,570.16 and 5,855.16

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Solution

The fourth proportional to 9,834.70, 13,570.16 and 5,855.16 is: 8,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,834.70 : 13,570.16 = 5,855.16 : x
  2. Step 2: Convert to fraction form
    9,834.70/13,570.16 = 5,855.16/x
  3. Step 3: Cross multiply
    9,834.70x = 13,570.16 × 5,855.16
  4. Step 4: Simplify right side
    9,834.70x = 79,455,458.03
  5. Step 5: Solve for x
    x = 79,455,458.03/9,834.70
  6. Step 6: Final answer
    x = 8,079.09

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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.