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Finding the Fourth Proportional to 42,682.76, 58,918.32 and 32,102.90

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Solution

The fourth proportional to 42,682.76, 58,918.32 and 32,102.90 is: 44,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,682.76 : 58,918.32 = 32,102.90 : x
  2. Step 2: Convert to fraction form
    42,682.76/58,918.32 = 32,102.90/x
  3. Step 3: Cross multiply
    42,682.76x = 58,918.32 × 32,102.90
  4. Step 4: Simplify right side
    42,682.76x = 1,891,448,935.13
  5. Step 5: Solve for x
    x = 1,891,448,935.13/42,682.76
  6. Step 6: Final answer
    x = 44,314.12

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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.