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Finding the Fourth Proportional to 19,166.69, 28,750.17 and 6,686.67

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Solution

The fourth proportional to 19,166.69, 28,750.17 and 6,686.67 is: 10,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.69 : 28,750.17 = 6,686.67 : x
  2. Step 2: Convert to fraction form
    19,166.69/28,750.17 = 6,686.67/x
  3. Step 3: Cross multiply
    19,166.69x = 28,750.17 × 6,686.67
  4. Step 4: Simplify right side
    19,166.69x = 192,242,899.23
  5. Step 5: Solve for x
    x = 192,242,899.23/19,166.69
  6. Step 6: Final answer
    x = 10,030.05

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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.