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Finding the Fourth Proportional to 18,485.68, 25,503.84 and 14,467

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Solution

The fourth proportional to 18,485.68, 25,503.84 and 14,467 is: 19,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.68 : 25,503.84 = 14,467 : x
  2. Step 2: Convert to fraction form
    18,485.68/25,503.84 = 14,467/x
  3. Step 3: Cross multiply
    18,485.68x = 25,503.84 × 14,467
  4. Step 4: Simplify right side
    18,485.68x = 368,964,053.28
  5. Step 5: Solve for x
    x = 368,964,053.28/18,485.68
  6. Step 6: Final answer
    x = 19,959.45

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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.