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Finding the Fourth Proportional to 48,365.12, 72,545.88 and 13,303.88

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Solution

The fourth proportional to 48,365.12, 72,545.88 and 13,303.88 is: 19,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,365.12 : 72,545.88 = 13,303.88 : x
  2. Step 2: Convert to fraction form
    48,365.12/72,545.88 = 13,303.88/x
  3. Step 3: Cross multiply
    48,365.12x = 72,545.88 × 13,303.88
  4. Step 4: Simplify right side
    48,365.12x = 965,141,682.01
  5. Step 5: Solve for x
    x = 965,141,682.01/48,365.12
  6. Step 6: Final answer
    x = 19,955.32

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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.