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Finding the Fourth Proportional to 58,863.60, 88,300.80 and 19,420.80

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Solution

The fourth proportional to 58,863.60, 88,300.80 and 19,420.80 is: 29,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,863.60 : 88,300.80 = 19,420.80 : x
  2. Step 2: Convert to fraction form
    58,863.60/88,300.80 = 19,420.80/x
  3. Step 3: Cross multiply
    58,863.60x = 88,300.80 × 19,420.80
  4. Step 4: Simplify right side
    58,863.60x = 1,714,872,176.64
  5. Step 5: Solve for x
    x = 1,714,872,176.64/58,863.60
  6. Step 6: Final answer
    x = 29,132.98

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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.