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Finding the Fourth Proportional to 3,973.68, 5,483.68 and 2,181.16

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Solution

The fourth proportional to 3,973.68, 5,483.68 and 2,181.16 is: 3,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.68 : 5,483.68 = 2,181.16 : x
  2. Step 2: Convert to fraction form
    3,973.68/5,483.68 = 2,181.16/x
  3. Step 3: Cross multiply
    3,973.68x = 5,483.68 × 2,181.16
  4. Step 4: Simplify right side
    3,973.68x = 11,960,783.47
  5. Step 5: Solve for x
    x = 11,960,783.47/3,973.68
  6. Step 6: Final answer
    x = 3,010.00

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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.