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Finding the Fourth Proportional to 58,419.88, 80,625.12 and 34,554.24

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Solution

The fourth proportional to 58,419.88, 80,625.12 and 34,554.24 is: 47,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,419.88 : 80,625.12 = 34,554.24 : x
  2. Step 2: Convert to fraction form
    58,419.88/80,625.12 = 34,554.24/x
  3. Step 3: Cross multiply
    58,419.88x = 80,625.12 × 34,554.24
  4. Step 4: Simplify right side
    58,419.88x = 2,785,939,170.61
  5. Step 5: Solve for x
    x = 2,785,939,170.61/58,419.88
  6. Step 6: Final answer
    x = 47,688.21

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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.