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Finding the Fourth Proportional to 82,912.55, 124,368.32 and 23,748.22

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Solution

The fourth proportional to 82,912.55, 124,368.32 and 23,748.22 is: 35,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,912.55 : 124,368.32 = 23,748.22 : x
  2. Step 2: Convert to fraction form
    82,912.55/124,368.32 = 23,748.22/x
  3. Step 3: Cross multiply
    82,912.55x = 124,368.32 × 23,748.22
  4. Step 4: Simplify right side
    82,912.55x = 2,953,525,972.84
  5. Step 5: Solve for x
    x = 2,953,525,972.84/82,912.55
  6. Step 6: Final answer
    x = 35,622.18

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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.