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Finding the Fourth Proportional to 18,065.72, 24,931.06 and 10,107.08

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Solution

The fourth proportional to 18,065.72, 24,931.06 and 10,107.08 is: 13,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.72 : 24,931.06 = 10,107.08 : x
  2. Step 2: Convert to fraction form
    18,065.72/24,931.06 = 10,107.08/x
  3. Step 3: Cross multiply
    18,065.72x = 24,931.06 × 10,107.08
  4. Step 4: Simplify right side
    18,065.72x = 251,980,217.90
  5. Step 5: Solve for x
    x = 251,980,217.90/18,065.72
  6. Step 6: Final answer
    x = 13,947.98

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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.