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Finding the Fourth Proportional to 2,334.76, 3,221.50 and 1,775.08

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Solution

The fourth proportional to 2,334.76, 3,221.50 and 1,775.08 is: 2,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.76 : 3,221.50 = 1,775.08 : x
  2. Step 2: Convert to fraction form
    2,334.76/3,221.50 = 1,775.08/x
  3. Step 3: Cross multiply
    2,334.76x = 3,221.50 × 1,775.08
  4. Step 4: Simplify right side
    2,334.76x = 5,718,420.22
  5. Step 5: Solve for x
    x = 5,718,420.22/2,334.76
  6. Step 6: Final answer
    x = 2,449.25

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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.