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Finding the Fourth Proportional to 58,548, 80,774.19 and 38,415.99

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Solution

The fourth proportional to 58,548, 80,774.19 and 38,415.99 is: 52,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,548 : 80,774.19 = 38,415.99 : x
  2. Step 2: Convert to fraction form
    58,548/80,774.19 = 38,415.99/x
  3. Step 3: Cross multiply
    58,548x = 80,774.19 × 38,415.99
  4. Step 4: Simplify right side
    58,548x = 3,103,020,475.30
  5. Step 5: Solve for x
    x = 3,103,020,475.30/58,548
  6. Step 6: Final answer
    x = 52,999.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.