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Finding the Fourth Proportional to 63,348.70, 87,430.48 and 36,485.98

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Solution

The fourth proportional to 63,348.70, 87,430.48 and 36,485.98 is: 50,355.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,348.70 : 87,430.48 = 36,485.98 : x
  2. Step 2: Convert to fraction form
    63,348.70/87,430.48 = 36,485.98/x
  3. Step 3: Cross multiply
    63,348.70x = 87,430.48 × 36,485.98
  4. Step 4: Simplify right side
    63,348.70x = 3,189,986,744.67
  5. Step 5: Solve for x
    x = 3,189,986,744.67/63,348.70
  6. Step 6: Final answer
    x = 50,355.99

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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.