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Finding the Fourth Proportional to 72,969.06, 109,459.80 and 23,035.80

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Solution

The fourth proportional to 72,969.06, 109,459.80 and 23,035.80 is: 34,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,969.06 : 109,459.80 = 23,035.80 : x
  2. Step 2: Convert to fraction form
    72,969.06/109,459.80 = 23,035.80/x
  3. Step 3: Cross multiply
    72,969.06x = 109,459.80 × 23,035.80
  4. Step 4: Simplify right side
    72,969.06x = 2,521,494,060.84
  5. Step 5: Solve for x
    x = 2,521,494,060.84/72,969.06
  6. Step 6: Final answer
    x = 34,555.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.