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Finding the Fourth Proportional to 82,963.80, 124,445.70 and 27,559.80

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Solution

The fourth proportional to 82,963.80, 124,445.70 and 27,559.80 is: 41,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,963.80 : 124,445.70 = 27,559.80 : x
  2. Step 2: Convert to fraction form
    82,963.80/124,445.70 = 27,559.80/x
  3. Step 3: Cross multiply
    82,963.80x = 124,445.70 × 27,559.80
  4. Step 4: Simplify right side
    82,963.80x = 3,429,698,602.86
  5. Step 5: Solve for x
    x = 3,429,698,602.86/82,963.80
  6. Step 6: Final answer
    x = 41,339.70

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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.