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Finding the Fourth Proportional to 35,407.95, 53,079.12 and 17,857.41

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Solution

The fourth proportional to 35,407.95, 53,079.12 and 17,857.41 is: 26,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,407.95 : 53,079.12 = 17,857.41 : x
  2. Step 2: Convert to fraction form
    35,407.95/53,079.12 = 17,857.41/x
  3. Step 3: Cross multiply
    35,407.95x = 53,079.12 × 17,857.41
  4. Step 4: Simplify right side
    35,407.95x = 947,855,608.28
  5. Step 5: Solve for x
    x = 947,855,608.28/35,407.95
  6. Step 6: Final answer
    x = 26,769.57

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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.