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Finding the Fourth Proportional to 59,465.80, 82,066.60 and 39,287.28

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Solution

The fourth proportional to 59,465.80, 82,066.60 and 39,287.28 is: 54,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,465.80 : 82,066.60 = 39,287.28 : x
  2. Step 2: Convert to fraction form
    59,465.80/82,066.60 = 39,287.28/x
  3. Step 3: Cross multiply
    59,465.80x = 82,066.60 × 39,287.28
  4. Step 4: Simplify right side
    59,465.80x = 3,224,173,492.85
  5. Step 5: Solve for x
    x = 3,224,173,492.85/59,465.80
  6. Step 6: Final answer
    x = 54,218.95

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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.