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Finding the Fourth Proportional to 30,866.60, 46,373.70 and 19,794.98

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Solution

The fourth proportional to 30,866.60, 46,373.70 and 19,794.98 is: 29,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866.60 : 46,373.70 = 19,794.98 : x
  2. Step 2: Convert to fraction form
    30,866.60/46,373.70 = 19,794.98/x
  3. Step 3: Cross multiply
    30,866.60x = 46,373.70 × 19,794.98
  4. Step 4: Simplify right side
    30,866.60x = 917,966,464.03
  5. Step 5: Solve for x
    x = 917,966,464.03/30,866.60
  6. Step 6: Final answer
    x = 29,739.80

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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.