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Finding the Fourth Proportional to 65,617.01, 90,554.42 and 36,946.53

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Solution

The fourth proportional to 65,617.01, 90,554.42 and 36,946.53 is: 50,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,617.01 : 90,554.42 = 36,946.53 : x
  2. Step 2: Convert to fraction form
    65,617.01/90,554.42 = 36,946.53/x
  3. Step 3: Cross multiply
    65,617.01x = 90,554.42 × 36,946.53
  4. Step 4: Simplify right side
    65,617.01x = 3,345,671,410.43
  5. Step 5: Solve for x
    x = 3,345,671,410.43/65,617.01
  6. Step 6: Final answer
    x = 50,987.87

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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.