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Finding the Fourth Proportional to 58,647.36, 80,931.38 and 34,759.86

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Solution

The fourth proportional to 58,647.36, 80,931.38 and 34,759.86 is: 47,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,647.36 : 80,931.38 = 34,759.86 : x
  2. Step 2: Convert to fraction form
    58,647.36/80,931.38 = 34,759.86/x
  3. Step 3: Cross multiply
    58,647.36x = 80,931.38 × 34,759.86
  4. Step 4: Simplify right side
    58,647.36x = 2,813,163,438.41
  5. Step 5: Solve for x
    x = 2,813,163,438.41/58,647.36
  6. Step 6: Final answer
    x = 47,967.44

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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.