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Finding the Fourth Proportional to 89,897.65, 134,751.24 and 39,252.21

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Solution

The fourth proportional to 89,897.65, 134,751.24 and 39,252.21 is: 58,836.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,897.65 : 134,751.24 = 39,252.21 : x
  2. Step 2: Convert to fraction form
    89,897.65/134,751.24 = 39,252.21/x
  3. Step 3: Cross multiply
    89,897.65x = 134,751.24 × 39,252.21
  4. Step 4: Simplify right side
    89,897.65x = 5,289,283,970.24
  5. Step 5: Solve for x
    x = 5,289,283,970.24/89,897.65
  6. Step 6: Final answer
    x = 58,836.73

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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.