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Finding the Fourth Proportional to 45,952.16, 63,420.96 and 28,057.60

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Solution

The fourth proportional to 45,952.16, 63,420.96 and 28,057.60 is: 38,723.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,952.16 : 63,420.96 = 28,057.60 : x
  2. Step 2: Convert to fraction form
    45,952.16/63,420.96 = 28,057.60/x
  3. Step 3: Cross multiply
    45,952.16x = 63,420.96 × 28,057.60
  4. Step 4: Simplify right side
    45,952.16x = 1,779,439,927.30
  5. Step 5: Solve for x
    x = 1,779,439,927.30/45,952.16
  6. Step 6: Final answer
    x = 38,723.75

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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.