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Finding the Fourth Proportional to 48,368.30, 72,552.45 and 13,307.90

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Solution

The fourth proportional to 48,368.30, 72,552.45 and 13,307.90 is: 19,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,368.30 : 72,552.45 = 13,307.90 : x
  2. Step 2: Convert to fraction form
    48,368.30/72,552.45 = 13,307.90/x
  3. Step 3: Cross multiply
    48,368.30x = 72,552.45 × 13,307.90
  4. Step 4: Simplify right side
    48,368.30x = 965,520,749.36
  5. Step 5: Solve for x
    x = 965,520,749.36/48,368.30
  6. Step 6: Final answer
    x = 19,961.85

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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.