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Finding the Fourth Proportional to 18,846.81, 28,225.05 and 10,506.10

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Solution

The fourth proportional to 18,846.81, 28,225.05 and 10,506.10 is: 15,733.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.81 : 28,225.05 = 10,506.10 : x
  2. Step 2: Convert to fraction form
    18,846.81/28,225.05 = 10,506.10/x
  3. Step 3: Cross multiply
    18,846.81x = 28,225.05 × 10,506.10
  4. Step 4: Simplify right side
    18,846.81x = 296,535,197.81
  5. Step 5: Solve for x
    x = 296,535,197.81/18,846.81
  6. Step 6: Final answer
    x = 15,733.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.