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Finding the Fourth Proportional to 55,884.79, 77,101.42 and 31,682.21

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Solution

The fourth proportional to 55,884.79, 77,101.42 and 31,682.21 is: 43,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,884.79 : 77,101.42 = 31,682.21 : x
  2. Step 2: Convert to fraction form
    55,884.79/77,101.42 = 31,682.21/x
  3. Step 3: Cross multiply
    55,884.79x = 77,101.42 × 31,682.21
  4. Step 4: Simplify right side
    55,884.79x = 2,442,742,974.43
  5. Step 5: Solve for x
    x = 2,442,742,974.43/55,884.79
  6. Step 6: Final answer
    x = 43,710.34

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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.