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Finding the Fourth Proportional to 30,693.40, 46,015.80 and 16,842.40

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Solution

The fourth proportional to 30,693.40, 46,015.80 and 16,842.40 is: 25,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,693.40 : 46,015.80 = 16,842.40 : x
  2. Step 2: Convert to fraction form
    30,693.40/46,015.80 = 16,842.40/x
  3. Step 3: Cross multiply
    30,693.40x = 46,015.80 × 16,842.40
  4. Step 4: Simplify right side
    30,693.40x = 775,016,509.92
  5. Step 5: Solve for x
    x = 775,016,509.92/30,693.40
  6. Step 6: Final answer
    x = 25,250.27

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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.