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Finding the Fourth Proportional to 58,407.60, 87,611.40 and 16,287.60

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Solution

The fourth proportional to 58,407.60, 87,611.40 and 16,287.60 is: 24,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,407.60 : 87,611.40 = 16,287.60 : x
  2. Step 2: Convert to fraction form
    58,407.60/87,611.40 = 16,287.60/x
  3. Step 3: Cross multiply
    58,407.60x = 87,611.40 × 16,287.60
  4. Step 4: Simplify right side
    58,407.60x = 1,426,979,438.64
  5. Step 5: Solve for x
    x = 1,426,979,438.64/58,407.60
  6. Step 6: Final answer
    x = 24,431.40

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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.