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Finding the Fourth Proportional to 59,639.88, 89,470.77 and 19,661.22

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Solution

The fourth proportional to 59,639.88, 89,470.77 and 19,661.22 is: 29,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,639.88 : 89,470.77 = 19,661.22 : x
  2. Step 2: Convert to fraction form
    59,639.88/89,470.77 = 19,661.22/x
  3. Step 3: Cross multiply
    59,639.88x = 89,470.77 × 19,661.22
  4. Step 4: Simplify right side
    59,639.88x = 1,759,104,492.54
  5. Step 5: Solve for x
    x = 1,759,104,492.54/59,639.88
  6. Step 6: Final answer
    x = 29,495.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.