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Finding the Fourth Proportional to 58,322.90, 80,485.44 and 33,172.40

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Solution

The fourth proportional to 58,322.90, 80,485.44 and 33,172.40 is: 45,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,322.90 : 80,485.44 = 33,172.40 : x
  2. Step 2: Convert to fraction form
    58,322.90/80,485.44 = 33,172.40/x
  3. Step 3: Cross multiply
    58,322.90x = 80,485.44 × 33,172.40
  4. Step 4: Simplify right side
    58,322.90x = 2,669,895,209.86
  5. Step 5: Solve for x
    x = 2,669,895,209.86/58,322.90
  6. Step 6: Final answer
    x = 45,777.82

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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.