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Finding the Fourth Proportional to 18,668.01, 25,762.82 and 10,284.51

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Solution

The fourth proportional to 18,668.01, 25,762.82 and 10,284.51 is: 14,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.01 : 25,762.82 = 10,284.51 : x
  2. Step 2: Convert to fraction form
    18,668.01/25,762.82 = 10,284.51/x
  3. Step 3: Cross multiply
    18,668.01x = 25,762.82 × 10,284.51
  4. Step 4: Simplify right side
    18,668.01x = 264,957,928.50
  5. Step 5: Solve for x
    x = 264,957,928.50/18,668.01
  6. Step 6: Final answer
    x = 14,193.15

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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.