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Finding the Fourth Proportional to 7,232.04, 9,980.28 and 4,247.28

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Solution

The fourth proportional to 7,232.04, 9,980.28 and 4,247.28 is: 5,861.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,232.04 : 9,980.28 = 4,247.28 : x
  2. Step 2: Convert to fraction form
    7,232.04/9,980.28 = 4,247.28/x
  3. Step 3: Cross multiply
    7,232.04x = 9,980.28 × 4,247.28
  4. Step 4: Simplify right side
    7,232.04x = 42,389,043.64
  5. Step 5: Solve for x
    x = 42,389,043.64/7,232.04
  6. Step 6: Final answer
    x = 5,861.28

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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.