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Finding the Fourth Proportional to 58,653.32, 87,971.06 and 19,209.56

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Solution

The fourth proportional to 58,653.32, 87,971.06 and 19,209.56 is: 28,811.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,653.32 : 87,971.06 = 19,209.56 : x
  2. Step 2: Convert to fraction form
    58,653.32/87,971.06 = 19,209.56/x
  3. Step 3: Cross multiply
    58,653.32x = 87,971.06 × 19,209.56
  4. Step 4: Simplify right side
    58,653.32x = 1,689,884,963.50
  5. Step 5: Solve for x
    x = 1,689,884,963.50/58,653.32
  6. Step 6: Final answer
    x = 28,811.41

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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.