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Finding the Fourth Proportional to 30,928.59, 46,392.90 and 17,772.57

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Solution

The fourth proportional to 30,928.59, 46,392.90 and 17,772.57 is: 26,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928.59 : 46,392.90 = 17,772.57 : x
  2. Step 2: Convert to fraction form
    30,928.59/46,392.90 = 17,772.57/x
  3. Step 3: Cross multiply
    30,928.59x = 46,392.90 × 17,772.57
  4. Step 4: Simplify right side
    30,928.59x = 824,521,062.75
  5. Step 5: Solve for x
    x = 824,521,062.75/30,928.59
  6. Step 6: Final answer
    x = 26,658.86

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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.