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Finding the Fourth Proportional to 58,340.88, 80,534.79 and 39,488.94

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Solution

The fourth proportional to 58,340.88, 80,534.79 and 39,488.94 is: 54,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,340.88 : 80,534.79 = 39,488.94 : x
  2. Step 2: Convert to fraction form
    58,340.88/80,534.79 = 39,488.94/x
  3. Step 3: Cross multiply
    58,340.88x = 80,534.79 × 39,488.94
  4. Step 4: Simplify right side
    58,340.88x = 3,180,233,490.22
  5. Step 5: Solve for x
    x = 3,180,233,490.22/58,340.88
  6. Step 6: Final answer
    x = 54,511.24

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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.