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Finding the Fourth Proportional to 58,947.91, 88,436.43 and 19,509.01

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Solution

The fourth proportional to 58,947.91, 88,436.43 and 19,509.01 is: 29,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,947.91 : 88,436.43 = 19,509.01 : x
  2. Step 2: Convert to fraction form
    58,947.91/88,436.43 = 19,509.01/x
  3. Step 3: Cross multiply
    58,947.91x = 88,436.43 × 19,509.01
  4. Step 4: Simplify right side
    58,947.91x = 1,725,307,197.23
  5. Step 5: Solve for x
    x = 1,725,307,197.23/58,947.91
  6. Step 6: Final answer
    x = 29,268.34

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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.