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Finding the Fourth Proportional to 3,663.48, 5,055.48 and 2,070.19

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Solution

The fourth proportional to 3,663.48, 5,055.48 and 2,070.19 is: 2,856.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.48 : 5,055.48 = 2,070.19 : x
  2. Step 2: Convert to fraction form
    3,663.48/5,055.48 = 2,070.19/x
  3. Step 3: Cross multiply
    3,663.48x = 5,055.48 × 2,070.19
  4. Step 4: Simplify right side
    3,663.48x = 10,465,804.14
  5. Step 5: Solve for x
    x = 10,465,804.14/3,663.48
  6. Step 6: Final answer
    x = 2,856.79

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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.