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Finding the Fourth Proportional to 18,005.50, 24,847.50 and 10,047.25

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Solution

The fourth proportional to 18,005.50, 24,847.50 and 10,047.25 is: 13,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.50 : 24,847.50 = 10,047.25 : x
  2. Step 2: Convert to fraction form
    18,005.50/24,847.50 = 10,047.25/x
  3. Step 3: Cross multiply
    18,005.50x = 24,847.50 × 10,047.25
  4. Step 4: Simplify right side
    18,005.50x = 249,649,044.38
  5. Step 5: Solve for x
    x = 249,649,044.38/18,005.50
  6. Step 6: Final answer
    x = 13,865.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.