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Finding the Fourth Proportional to 58,477.10, 87,721.18 and 16,357.18

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Solution

The fourth proportional to 58,477.10, 87,721.18 and 16,357.18 is: 24,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,477.10 : 87,721.18 = 16,357.18 : x
  2. Step 2: Convert to fraction form
    58,477.10/87,721.18 = 16,357.18/x
  3. Step 3: Cross multiply
    58,477.10x = 87,721.18 × 16,357.18
  4. Step 4: Simplify right side
    58,477.10x = 1,434,871,131.07
  5. Step 5: Solve for x
    x = 1,434,871,131.07/58,477.10
  6. Step 6: Final answer
    x = 24,537.32

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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.