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Finding the Fourth Proportional to 13,509.84, 18,601.80 and 10,325.84

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Solution

The fourth proportional to 13,509.84, 18,601.80 and 10,325.84 is: 14,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.84 : 18,601.80 = 10,325.84 : x
  2. Step 2: Convert to fraction form
    13,509.84/18,601.80 = 10,325.84/x
  3. Step 3: Cross multiply
    13,509.84x = 18,601.80 × 10,325.84
  4. Step 4: Simplify right side
    13,509.84x = 192,079,210.51
  5. Step 5: Solve for x
    x = 192,079,210.51/13,509.84
  6. Step 6: Final answer
    x = 14,217.73

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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.