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Finding the Fourth Proportional to 50,866.86, 70,195.95 and 28,510.86

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Solution

The fourth proportional to 50,866.86, 70,195.95 and 28,510.86 is: 39,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,866.86 : 70,195.95 = 28,510.86 : x
  2. Step 2: Convert to fraction form
    50,866.86/70,195.95 = 28,510.86/x
  3. Step 3: Cross multiply
    50,866.86x = 70,195.95 × 28,510.86
  4. Step 4: Simplify right side
    50,866.86x = 2,001,346,903.02
  5. Step 5: Solve for x
    x = 2,001,346,903.02/50,866.86
  6. Step 6: Final answer
    x = 39,344.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.