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Finding the Fourth Proportional to 18,484.19, 25,509.09 and 10,527.15

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Solution

The fourth proportional to 18,484.19, 25,509.09 and 10,527.15 is: 14,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.19 : 25,509.09 = 10,527.15 : x
  2. Step 2: Convert to fraction form
    18,484.19/25,509.09 = 10,527.15/x
  3. Step 3: Cross multiply
    18,484.19x = 25,509.09 × 10,527.15
  4. Step 4: Simplify right side
    18,484.19x = 268,538,016.79
  5. Step 5: Solve for x
    x = 268,538,016.79/18,484.19
  6. Step 6: Final answer
    x = 14,527.98

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Half scale
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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.