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Finding the Fourth Proportional to 3,536.48, 4,881.48 and 2,139.68

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Solution

The fourth proportional to 3,536.48, 4,881.48 and 2,139.68 is: 2,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,536.48 : 4,881.48 = 2,139.68 : x
  2. Step 2: Convert to fraction form
    3,536.48/4,881.48 = 2,139.68/x
  3. Step 3: Cross multiply
    3,536.48x = 4,881.48 × 2,139.68
  4. Step 4: Simplify right side
    3,536.48x = 10,444,805.13
  5. Step 5: Solve for x
    x = 10,444,805.13/3,536.48
  6. Step 6: Final answer
    x = 2,953.45

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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.