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Finding the Fourth Proportional to 58,496.16, 87,722.40 and 21,046.08

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Solution

The fourth proportional to 58,496.16, 87,722.40 and 21,046.08 is: 31,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,496.16 : 87,722.40 = 21,046.08 : x
  2. Step 2: Convert to fraction form
    58,496.16/87,722.40 = 21,046.08/x
  3. Step 3: Cross multiply
    58,496.16x = 87,722.40 × 21,046.08
  4. Step 4: Simplify right side
    58,496.16x = 1,846,212,648.19
  5. Step 5: Solve for x
    x = 1,846,212,648.19/58,496.16
  6. Step 6: Final answer
    x = 31,561.26

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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.