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Finding the Fourth Proportional to 30,987.70, 46,484.62 and 9,922.46

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Solution

The fourth proportional to 30,987.70, 46,484.62 and 9,922.46 is: 14,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.70 : 46,484.62 = 9,922.46 : x
  2. Step 2: Convert to fraction form
    30,987.70/46,484.62 = 9,922.46/x
  3. Step 3: Cross multiply
    30,987.70x = 46,484.62 × 9,922.46
  4. Step 4: Simplify right side
    30,987.70x = 461,241,525.34
  5. Step 5: Solve for x
    x = 461,241,525.34/30,987.70
  6. Step 6: Final answer
    x = 14,884.67

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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.