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Finding the Fourth Proportional to 28,948.50, 43,422.75 and 7,060.50

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Solution

The fourth proportional to 28,948.50, 43,422.75 and 7,060.50 is: 10,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.50 : 43,422.75 = 7,060.50 : x
  2. Step 2: Convert to fraction form
    28,948.50/43,422.75 = 7,060.50/x
  3. Step 3: Cross multiply
    28,948.50x = 43,422.75 × 7,060.50
  4. Step 4: Simplify right side
    28,948.50x = 306,586,326.38
  5. Step 5: Solve for x
    x = 306,586,326.38/28,948.50
  6. Step 6: Final answer
    x = 10,590.75

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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.