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Finding the Fourth Proportional to 8,572.74, 11,830.90 and 4,795.93

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Solution

The fourth proportional to 8,572.74, 11,830.90 and 4,795.93 is: 6,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.74 : 11,830.90 = 4,795.93 : x
  2. Step 2: Convert to fraction form
    8,572.74/11,830.90 = 4,795.93/x
  3. Step 3: Cross multiply
    8,572.74x = 11,830.90 × 4,795.93
  4. Step 4: Simplify right side
    8,572.74x = 56,740,124.10
  5. Step 5: Solve for x
    x = 56,740,124.10/8,572.74
  6. Step 6: Final answer
    x = 6,618.67

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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.