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Finding the Fourth Proportional to 35,862.24, 53,802.24 and 12,488.88

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Solution

The fourth proportional to 35,862.24, 53,802.24 and 12,488.88 is: 18,736.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,862.24 : 53,802.24 = 12,488.88 : x
  2. Step 2: Convert to fraction form
    35,862.24/53,802.24 = 12,488.88/x
  3. Step 3: Cross multiply
    35,862.24x = 53,802.24 × 12,488.88
  4. Step 4: Simplify right side
    35,862.24x = 671,929,719.09
  5. Step 5: Solve for x
    x = 671,929,719.09/35,862.24
  6. Step 6: Final answer
    x = 18,736.41

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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.