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Finding the Fourth Proportional to 13,624.49, 18,750.60 and 11,527.60

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Solution

The fourth proportional to 13,624.49, 18,750.60 and 11,527.60 is: 15,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.49 : 18,750.60 = 11,527.60 : x
  2. Step 2: Convert to fraction form
    13,624.49/18,750.60 = 11,527.60/x
  3. Step 3: Cross multiply
    13,624.49x = 18,750.60 × 11,527.60
  4. Step 4: Simplify right side
    13,624.49x = 216,149,322.81
  5. Step 5: Solve for x
    x = 216,149,322.81/13,624.49
  6. Step 6: Final answer
    x = 15,864.76

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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.