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Finding the Fourth Proportional to 82,783.61, 124,199.61 and 26,622.46

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Solution

The fourth proportional to 82,783.61, 124,199.61 and 26,622.46 is: 39,941.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,783.61 : 124,199.61 = 26,622.46 : x
  2. Step 2: Convert to fraction form
    82,783.61/124,199.61 = 26,622.46/x
  3. Step 3: Cross multiply
    82,783.61x = 124,199.61 × 26,622.46
  4. Step 4: Simplify right side
    82,783.61x = 3,306,499,149.24
  5. Step 5: Solve for x
    x = 3,306,499,149.24/82,783.61
  6. Step 6: Final answer
    x = 39,941.47

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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.