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Finding the Fourth Proportional to 25,651.80, 38,477.70 and 14,554.20

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Solution

The fourth proportional to 25,651.80, 38,477.70 and 14,554.20 is: 21,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.80 : 38,477.70 = 14,554.20 : x
  2. Step 2: Convert to fraction form
    25,651.80/38,477.70 = 14,554.20/x
  3. Step 3: Cross multiply
    25,651.80x = 38,477.70 × 14,554.20
  4. Step 4: Simplify right side
    25,651.80x = 560,012,141.34
  5. Step 5: Solve for x
    x = 560,012,141.34/25,651.80
  6. Step 6: Final answer
    x = 21,831.30

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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.