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Finding the Fourth Proportional to 7,034.16, 9,707.04 and 3,890.32

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Solution

The fourth proportional to 7,034.16, 9,707.04 and 3,890.32 is: 5,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,034.16 : 9,707.04 = 3,890.32 : x
  2. Step 2: Convert to fraction form
    7,034.16/9,707.04 = 3,890.32/x
  3. Step 3: Cross multiply
    7,034.16x = 9,707.04 × 3,890.32
  4. Step 4: Simplify right side
    7,034.16x = 37,763,491.85
  5. Step 5: Solve for x
    x = 37,763,491.85/7,034.16
  6. Step 6: Final answer
    x = 5,368.59

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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.