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Finding the Fourth Proportional to 35,487.40, 53,239.64 and 13,300.97

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Solution

The fourth proportional to 35,487.40, 53,239.64 and 13,300.97 is: 19,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.40 : 53,239.64 = 13,300.97 : x
  2. Step 2: Convert to fraction form
    35,487.40/53,239.64 = 13,300.97/x
  3. Step 3: Cross multiply
    35,487.40x = 53,239.64 × 13,300.97
  4. Step 4: Simplify right side
    35,487.40x = 708,138,854.45
  5. Step 5: Solve for x
    x = 708,138,854.45/35,487.40
  6. Step 6: Final answer
    x = 19,954.66

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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.