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Finding the Fourth Proportional to 56,385.25, 77,811.65 and 34,029.25

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Solution

The fourth proportional to 56,385.25, 77,811.65 and 34,029.25 is: 46,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,385.25 : 77,811.65 = 34,029.25 : x
  2. Step 2: Convert to fraction form
    56,385.25/77,811.65 = 34,029.25/x
  3. Step 3: Cross multiply
    56,385.25x = 77,811.65 × 34,029.25
  4. Step 4: Simplify right side
    56,385.25x = 2,647,872,090.76
  5. Step 5: Solve for x
    x = 2,647,872,090.76/56,385.25
  6. Step 6: Final answer
    x = 46,960.37

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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.