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Finding the Fourth Proportional to 35,862.39, 53,818.07 and 12,488.82

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Solution

The fourth proportional to 35,862.39, 53,818.07 and 12,488.82 is: 18,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,862.39 : 53,818.07 = 12,488.82 : x
  2. Step 2: Convert to fraction form
    35,862.39/53,818.07 = 12,488.82/x
  3. Step 3: Cross multiply
    35,862.39x = 53,818.07 × 12,488.82
  4. Step 4: Simplify right side
    35,862.39x = 672,124,126.53
  5. Step 5: Solve for x
    x = 672,124,126.53/35,862.39
  6. Step 6: Final answer
    x = 18,741.75

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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.