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Finding the Fourth Proportional to 18,495.98, 27,746.99 and 10,179.90

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Solution

The fourth proportional to 18,495.98, 27,746.99 and 10,179.90 is: 15,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.98 : 27,746.99 = 10,179.90 : x
  2. Step 2: Convert to fraction form
    18,495.98/27,746.99 = 10,179.90/x
  3. Step 3: Cross multiply
    18,495.98x = 27,746.99 × 10,179.90
  4. Step 4: Simplify right side
    18,495.98x = 282,461,532.60
  5. Step 5: Solve for x
    x = 282,461,532.60/18,495.98
  6. Step 6: Final answer
    x = 15,271.51

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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.