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Finding the Fourth Proportional to 35,503.16, 53,176.92 and 21,623

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Solution

The fourth proportional to 35,503.16, 53,176.92 and 21,623 is: 32,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,503.16 : 53,176.92 = 21,623 : x
  2. Step 2: Convert to fraction form
    35,503.16/53,176.92 = 21,623/x
  3. Step 3: Cross multiply
    35,503.16x = 53,176.92 × 21,623
  4. Step 4: Simplify right side
    35,503.16x = 1,149,844,541.16
  5. Step 5: Solve for x
    x = 1,149,844,541.16/35,503.16
  6. Step 6: Final answer
    x = 32,387.10

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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.