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Finding the Fourth Proportional to 30,705.60, 46,065.60 and 10,986.24

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Solution

The fourth proportional to 30,705.60, 46,065.60 and 10,986.24 is: 16,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,705.60 : 46,065.60 = 10,986.24 : x
  2. Step 2: Convert to fraction form
    30,705.60/46,065.60 = 10,986.24/x
  3. Step 3: Cross multiply
    30,705.60x = 46,065.60 × 10,986.24
  4. Step 4: Simplify right side
    30,705.60x = 506,087,737.34
  5. Step 5: Solve for x
    x = 506,087,737.34/30,705.60
  6. Step 6: Final answer
    x = 16,481.94

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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.