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Finding the Fourth Proportional to 30,999.81, 46,482.71 and 14,350.67

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Solution

The fourth proportional to 30,999.81, 46,482.71 and 14,350.67 is: 21,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999.81 : 46,482.71 = 14,350.67 : x
  2. Step 2: Convert to fraction form
    30,999.81/46,482.71 = 14,350.67/x
  3. Step 3: Cross multiply
    30,999.81x = 46,482.71 × 14,350.67
  4. Step 4: Simplify right side
    30,999.81x = 667,057,982.78
  5. Step 5: Solve for x
    x = 667,057,982.78/30,999.81
  6. Step 6: Final answer
    x = 21,518.13

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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.