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Finding the Fourth Proportional to 30,959.75, 46,425.45 and 9,895.70

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Solution

The fourth proportional to 30,959.75, 46,425.45 and 9,895.70 is: 14,839.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,959.75 : 46,425.45 = 9,895.70 : x
  2. Step 2: Convert to fraction form
    30,959.75/46,425.45 = 9,895.70/x
  3. Step 3: Cross multiply
    30,959.75x = 46,425.45 × 9,895.70
  4. Step 4: Simplify right side
    30,959.75x = 459,412,478.74
  5. Step 5: Solve for x
    x = 459,412,478.74/30,959.75
  6. Step 6: Final answer
    x = 14,839.02

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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.