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Finding the Fourth Proportional to 6,003.36, 8,307.36 and 5,117.76

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Solution

The fourth proportional to 6,003.36, 8,307.36 and 5,117.76 is: 7,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,003.36 : 8,307.36 = 5,117.76 : x
  2. Step 2: Convert to fraction form
    6,003.36/8,307.36 = 5,117.76/x
  3. Step 3: Cross multiply
    6,003.36x = 8,307.36 × 5,117.76
  4. Step 4: Simplify right side
    6,003.36x = 42,515,074.71
  5. Step 5: Solve for x
    x = 42,515,074.71/6,003.36
  6. Step 6: Final answer
    x = 7,081.88

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Half scale
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Double scale
Find fourth proportional to 6,004.36, 8,308.74 and 5,118.76
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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.