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Finding the Fourth Proportional to 58,488.47, 87,713.06 and 19,036.30

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Solution

The fourth proportional to 58,488.47, 87,713.06 and 19,036.30 is: 28,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,488.47 : 87,713.06 = 19,036.30 : x
  2. Step 2: Convert to fraction form
    58,488.47/87,713.06 = 19,036.30/x
  3. Step 3: Cross multiply
    58,488.47x = 87,713.06 × 19,036.30
  4. Step 4: Simplify right side
    58,488.47x = 1,669,732,124.08
  5. Step 5: Solve for x
    x = 1,669,732,124.08/58,488.47
  6. Step 6: Final answer
    x = 28,548.06

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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.