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Finding the Fourth Proportional to 38,663.52, 58,017.58 and 20,894.22

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Solution

The fourth proportional to 38,663.52, 58,017.58 and 20,894.22 is: 31,353.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,663.52 : 58,017.58 = 20,894.22 : x
  2. Step 2: Convert to fraction form
    38,663.52/58,017.58 = 20,894.22/x
  3. Step 3: Cross multiply
    38,663.52x = 58,017.58 × 20,894.22
  4. Step 4: Simplify right side
    38,663.52x = 1,212,232,080.39
  5. Step 5: Solve for x
    x = 1,212,232,080.39/38,663.52
  6. Step 6: Final answer
    x = 31,353.38

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1.5x scale

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.