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Finding the Fourth Proportional to 18,068.81, 24,935.31 and 10,898.69

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Solution

The fourth proportional to 18,068.81, 24,935.31 and 10,898.69 is: 15,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068.81 : 24,935.31 = 10,898.69 : x
  2. Step 2: Convert to fraction form
    18,068.81/24,935.31 = 10,898.69/x
  3. Step 3: Cross multiply
    18,068.81x = 24,935.31 × 10,898.69
  4. Step 4: Simplify right side
    18,068.81x = 271,762,089.07
  5. Step 5: Solve for x
    x = 271,762,089.07/18,068.81
  6. Step 6: Final answer
    x = 15,040.40

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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.