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Finding the Fourth Proportional to 17,619.51, 26,430.18 and 4,472.01

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Solution

The fourth proportional to 17,619.51, 26,430.18 and 4,472.01 is: 6,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.51 : 26,430.18 = 4,472.01 : x
  2. Step 2: Convert to fraction form
    17,619.51/26,430.18 = 4,472.01/x
  3. Step 3: Cross multiply
    17,619.51x = 26,430.18 × 4,472.01
  4. Step 4: Simplify right side
    17,619.51x = 118,196,029.26
  5. Step 5: Solve for x
    x = 118,196,029.26/17,619.51
  6. Step 6: Final answer
    x = 6,708.25

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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.