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Finding the Fourth Proportional to 30,124.56, 44,868.39 and 28,543.44

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Solution

The fourth proportional to 30,124.56, 44,868.39 and 28,543.44 is: 42,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,124.56 : 44,868.39 = 28,543.44 : x
  2. Step 2: Convert to fraction form
    30,124.56/44,868.39 = 28,543.44/x
  3. Step 3: Cross multiply
    30,124.56x = 44,868.39 × 28,543.44
  4. Step 4: Simplify right side
    30,124.56x = 1,280,698,197.86
  5. Step 5: Solve for x
    x = 1,280,698,197.86/30,124.56
  6. Step 6: Final answer
    x = 42,513.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.