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Finding the Fourth Proportional to 6,276.44, 8,661.54 and 3,482.12

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Solution

The fourth proportional to 6,276.44, 8,661.54 and 3,482.12 is: 4,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,276.44 : 8,661.54 = 3,482.12 : x
  2. Step 2: Convert to fraction form
    6,276.44/8,661.54 = 3,482.12/x
  3. Step 3: Cross multiply
    6,276.44x = 8,661.54 × 3,482.12
  4. Step 4: Simplify right side
    6,276.44x = 30,160,521.66
  5. Step 5: Solve for x
    x = 30,160,521.66/6,276.44
  6. Step 6: Final answer
    x = 4,805.35

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Half scale
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Double scale
Find fourth proportional to 6,277.44, 8,662.92 and 3,483.12
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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.