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Finding the Fourth Proportional to 58,862.60, 88,299.30 and 19,419.80

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Solution

The fourth proportional to 58,862.60, 88,299.30 and 19,419.80 is: 29,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,862.60 : 88,299.30 = 19,419.80 : x
  2. Step 2: Convert to fraction form
    58,862.60/88,299.30 = 19,419.80/x
  3. Step 3: Cross multiply
    58,862.60x = 88,299.30 × 19,419.80
  4. Step 4: Simplify right side
    58,862.60x = 1,714,754,746.14
  5. Step 5: Solve for x
    x = 1,714,754,746.14/58,862.60
  6. Step 6: Final answer
    x = 29,131.48

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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.