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Finding the Fourth Proportional to 7,048.29, 9,728.25 and 4,395.19

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Solution

The fourth proportional to 7,048.29, 9,728.25 and 4,395.19 is: 6,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.29 : 9,728.25 = 4,395.19 : x
  2. Step 2: Convert to fraction form
    7,048.29/9,728.25 = 4,395.19/x
  3. Step 3: Cross multiply
    7,048.29x = 9,728.25 × 4,395.19
  4. Step 4: Simplify right side
    7,048.29x = 42,757,507.12
  5. Step 5: Solve for x
    x = 42,757,507.12/7,048.29
  6. Step 6: Final answer
    x = 6,066.37

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Half scale
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Double scale
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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.