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Finding the Fourth Proportional to 71,599.98, 107,391.66 and 19,013.58

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Solution

The fourth proportional to 71,599.98, 107,391.66 and 19,013.58 is: 28,518.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,599.98 : 107,391.66 = 19,013.58 : x
  2. Step 2: Convert to fraction form
    71,599.98/107,391.66 = 19,013.58/x
  3. Step 3: Cross multiply
    71,599.98x = 107,391.66 × 19,013.58
  4. Step 4: Simplify right side
    71,599.98x = 2,041,899,918.74
  5. Step 5: Solve for x
    x = 2,041,899,918.74/71,599.98
  6. Step 6: Final answer
    x = 28,518.16

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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.