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Finding the Fourth Proportional to 45,543.36, 62,856 and 26,688

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Solution

The fourth proportional to 45,543.36, 62,856 and 26,688 is: 36,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,543.36 : 62,856 = 26,688 : x
  2. Step 2: Convert to fraction form
    45,543.36/62,856 = 26,688/x
  3. Step 3: Cross multiply
    45,543.36x = 62,856 × 26,688
  4. Step 4: Simplify right side
    45,543.36x = 1,677,500,928
  5. Step 5: Solve for x
    x = 1,677,500,928/45,543.36
  6. Step 6: Final answer
    x = 36,833.05

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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.