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Finding the Fourth Proportional to 58,191.99, 87,326.25 and 31,915.17

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Solution

The fourth proportional to 58,191.99, 87,326.25 and 31,915.17 is: 47,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,191.99 : 87,326.25 = 31,915.17 : x
  2. Step 2: Convert to fraction form
    58,191.99/87,326.25 = 31,915.17/x
  3. Step 3: Cross multiply
    58,191.99x = 87,326.25 × 31,915.17
  4. Step 4: Simplify right side
    58,191.99x = 2,787,032,114.21
  5. Step 5: Solve for x
    x = 2,787,032,114.21/58,191.99
  6. Step 6: Final answer
    x = 47,893.74

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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.