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Finding the Fourth Proportional to 65,295.86, 90,107.97 and 35,487.86

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Solution

The fourth proportional to 65,295.86, 90,107.97 and 35,487.86 is: 48,973.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,295.86 : 90,107.97 = 35,487.86 : x
  2. Step 2: Convert to fraction form
    65,295.86/90,107.97 = 35,487.86/x
  3. Step 3: Cross multiply
    65,295.86x = 90,107.97 × 35,487.86
  4. Step 4: Simplify right side
    65,295.86x = 3,197,739,024.24
  5. Step 5: Solve for x
    x = 3,197,739,024.24/65,295.86
  6. Step 6: Final answer
    x = 48,973.07

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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.