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Finding the Fourth Proportional to 58,598.64, 87,905.25 and 19,145.16

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Solution

The fourth proportional to 58,598.64, 87,905.25 and 19,145.16 is: 28,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,598.64 : 87,905.25 = 19,145.16 : x
  2. Step 2: Convert to fraction form
    58,598.64/87,905.25 = 19,145.16/x
  3. Step 3: Cross multiply
    58,598.64x = 87,905.25 × 19,145.16
  4. Step 4: Simplify right side
    58,598.64x = 1,682,960,076.09
  5. Step 5: Solve for x
    x = 1,682,960,076.09/58,598.64
  6. Step 6: Final answer
    x = 28,720.12

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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.