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Finding the Fourth Proportional to 5,748.16, 7,930.19 and 3,509.22

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Solution

The fourth proportional to 5,748.16, 7,930.19 and 3,509.22 is: 4,841.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,748.16 : 7,930.19 = 3,509.22 : x
  2. Step 2: Convert to fraction form
    5,748.16/7,930.19 = 3,509.22/x
  3. Step 3: Cross multiply
    5,748.16x = 7,930.19 × 3,509.22
  4. Step 4: Simplify right side
    5,748.16x = 27,828,763.81
  5. Step 5: Solve for x
    x = 27,828,763.81/5,748.16
  6. Step 6: Final answer
    x = 4,841.33

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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.