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Finding the Fourth Proportional to 30,648.51, 45,940.08 and 17,472.51

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Solution

The fourth proportional to 30,648.51, 45,940.08 and 17,472.51 is: 26,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.51 : 45,940.08 = 17,472.51 : x
  2. Step 2: Convert to fraction form
    30,648.51/45,940.08 = 17,472.51/x
  3. Step 3: Cross multiply
    30,648.51x = 45,940.08 × 17,472.51
  4. Step 4: Simplify right side
    30,648.51x = 802,688,507.20
  5. Step 5: Solve for x
    x = 802,688,507.20/30,648.51
  6. Step 6: Final answer
    x = 26,190.13

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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.