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Finding the Fourth Proportional to 58,456.40, 87,699 and 16,907.60

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Solution

The fourth proportional to 58,456.40, 87,699 and 16,907.60 is: 25,365.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,456.40 : 87,699 = 16,907.60 : x
  2. Step 2: Convert to fraction form
    58,456.40/87,699 = 16,907.60/x
  3. Step 3: Cross multiply
    58,456.40x = 87,699 × 16,907.60
  4. Step 4: Simplify right side
    58,456.40x = 1,482,779,612.40
  5. Step 5: Solve for x
    x = 1,482,779,612.40/58,456.40
  6. Step 6: Final answer
    x = 25,365.56

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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.