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Finding the Fourth Proportional to 18,506, 25,526.28 and 12,466.64

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Solution

The fourth proportional to 18,506, 25,526.28 and 12,466.64 is: 17,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506 : 25,526.28 = 12,466.64 : x
  2. Step 2: Convert to fraction form
    18,506/25,526.28 = 12,466.64/x
  3. Step 3: Cross multiply
    18,506x = 25,526.28 × 12,466.64
  4. Step 4: Simplify right side
    18,506x = 318,226,943.30
  5. Step 5: Solve for x
    x = 318,226,943.30/18,506
  6. Step 6: Final answer
    x = 17,195.88

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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.