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Finding the Fourth Proportional to 18,707.26, 28,060.88 and 9,473.26

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Solution

The fourth proportional to 18,707.26, 28,060.88 and 9,473.26 is: 14,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.26 : 28,060.88 = 9,473.26 : x
  2. Step 2: Convert to fraction form
    18,707.26/28,060.88 = 9,473.26/x
  3. Step 3: Cross multiply
    18,707.26x = 28,060.88 × 9,473.26
  4. Step 4: Simplify right side
    18,707.26x = 265,828,012.07
  5. Step 5: Solve for x
    x = 265,828,012.07/18,707.26
  6. Step 6: Final answer
    x = 14,209.88

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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.