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Finding the Fourth Proportional to 48,453.94, 72,636.90 and 17,281.90

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Solution

The fourth proportional to 48,453.94, 72,636.90 and 17,281.90 is: 25,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,453.94 : 72,636.90 = 17,281.90 : x
  2. Step 2: Convert to fraction form
    48,453.94/72,636.90 = 17,281.90/x
  3. Step 3: Cross multiply
    48,453.94x = 72,636.90 × 17,281.90
  4. Step 4: Simplify right side
    48,453.94x = 1,255,303,642.11
  5. Step 5: Solve for x
    x = 1,255,303,642.11/48,453.94
  6. Step 6: Final answer
    x = 25,907.15

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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.