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Finding the Fourth Proportional to 58,482.21, 87,702.62 and 19,031.97

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Solution

The fourth proportional to 58,482.21, 87,702.62 and 19,031.97 is: 28,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,482.21 : 87,702.62 = 19,031.97 : x
  2. Step 2: Convert to fraction form
    58,482.21/87,702.62 = 19,031.97/x
  3. Step 3: Cross multiply
    58,482.21x = 87,702.62 × 19,031.97
  4. Step 4: Simplify right side
    58,482.21x = 1,669,153,537.60
  5. Step 5: Solve for x
    x = 1,669,153,537.60/58,482.21
  6. Step 6: Final answer
    x = 28,541.22

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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.