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Finding the Fourth Proportional to 48,208.61, 72,305.48 and 13,151.00

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Solution

The fourth proportional to 48,208.61, 72,305.48 and 13,151.00 is: 19,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,208.61 : 72,305.48 = 13,151.00 : x
  2. Step 2: Convert to fraction form
    48,208.61/72,305.48 = 13,151.00/x
  3. Step 3: Cross multiply
    48,208.61x = 72,305.48 × 13,151.00
  4. Step 4: Simplify right side
    48,208.61x = 950,889,038.83
  5. Step 5: Solve for x
    x = 950,889,038.83/48,208.61
  6. Step 6: Final answer
    x = 19,724.47

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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.