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Finding the Fourth Proportional to 58,743.36, 88,128.72 and 19,300.32

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Solution

The fourth proportional to 58,743.36, 88,128.72 and 19,300.32 is: 28,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,743.36 : 88,128.72 = 19,300.32 : x
  2. Step 2: Convert to fraction form
    58,743.36/88,128.72 = 19,300.32/x
  3. Step 3: Cross multiply
    58,743.36x = 88,128.72 × 19,300.32
  4. Step 4: Simplify right side
    58,743.36x = 1,700,912,497.19
  5. Step 5: Solve for x
    x = 1,700,912,497.19/58,743.36
  6. Step 6: Final answer
    x = 28,954.97

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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.