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Finding the Fourth Proportional to 58,663.93, 80,913.21 and 38,513.46

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Solution

The fourth proportional to 58,663.93, 80,913.21 and 38,513.46 is: 53,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,663.93 : 80,913.21 = 38,513.46 : x
  2. Step 2: Convert to fraction form
    58,663.93/80,913.21 = 38,513.46/x
  3. Step 3: Cross multiply
    58,663.93x = 80,913.21 × 38,513.46
  4. Step 4: Simplify right side
    58,663.93x = 3,116,247,676.81
  5. Step 5: Solve for x
    x = 3,116,247,676.81/58,663.93
  6. Step 6: Final answer
    x = 53,120.34

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1.5x scale

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.