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Finding the Fourth Proportional to 18,668.25, 25,762.19 and 10,710.14

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Solution

The fourth proportional to 18,668.25, 25,762.19 and 10,710.14 is: 14,779.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.25 : 25,762.19 = 10,710.14 : x
  2. Step 2: Convert to fraction form
    18,668.25/25,762.19 = 10,710.14/x
  3. Step 3: Cross multiply
    18,668.25x = 25,762.19 × 10,710.14
  4. Step 4: Simplify right side
    18,668.25x = 275,916,479.24
  5. Step 5: Solve for x
    x = 275,916,479.24/18,668.25
  6. Step 6: Final answer
    x = 14,779.99

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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.