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Finding the Fourth Proportional to 12,158.70, 18,208.65 and 10,063.27

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Solution

The fourth proportional to 12,158.70, 18,208.65 and 10,063.27 is: 15,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.70 : 18,208.65 = 10,063.27 : x
  2. Step 2: Convert to fraction form
    12,158.70/18,208.65 = 10,063.27/x
  3. Step 3: Cross multiply
    12,158.70x = 18,208.65 × 10,063.27
  4. Step 4: Simplify right side
    12,158.70x = 183,238,561.29
  5. Step 5: Solve for x
    x = 183,238,561.29/12,158.70
  6. Step 6: Final answer
    x = 15,070.57

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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.