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Finding the Fourth Proportional to 65,199.16, 89,970.42 and 36,903.16

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Solution

The fourth proportional to 65,199.16, 89,970.42 and 36,903.16 is: 50,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,199.16 : 89,970.42 = 36,903.16 : x
  2. Step 2: Convert to fraction form
    65,199.16/89,970.42 = 36,903.16/x
  3. Step 3: Cross multiply
    65,199.16x = 89,970.42 × 36,903.16
  4. Step 4: Simplify right side
    65,199.16x = 3,320,192,804.53
  5. Step 5: Solve for x
    x = 3,320,192,804.53/65,199.16
  6. Step 6: Final answer
    x = 50,923.86

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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.