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Finding the Fourth Proportional to 30,795.61, 46,193.01 and 7,421.84

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Solution

The fourth proportional to 30,795.61, 46,193.01 and 7,421.84 is: 11,132.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,795.61 : 46,193.01 = 7,421.84 : x
  2. Step 2: Convert to fraction form
    30,795.61/46,193.01 = 7,421.84/x
  3. Step 3: Cross multiply
    30,795.61x = 46,193.01 × 7,421.84
  4. Step 4: Simplify right side
    30,795.61x = 342,837,288.65
  5. Step 5: Solve for x
    x = 342,837,288.65/30,795.61
  6. Step 6: Final answer
    x = 11,132.67

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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.