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Finding the Fourth Proportional to 64,893.98, 89,572.84 and 38,042.30

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Solution

The fourth proportional to 64,893.98, 89,572.84 and 38,042.30 is: 52,509.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,893.98 : 89,572.84 = 38,042.30 : x
  2. Step 2: Convert to fraction form
    64,893.98/89,572.84 = 38,042.30/x
  3. Step 3: Cross multiply
    64,893.98x = 89,572.84 × 38,042.30
  4. Step 4: Simplify right side
    64,893.98x = 3,407,556,308.16
  5. Step 5: Solve for x
    x = 3,407,556,308.16/64,893.98
  6. Step 6: Final answer
    x = 52,509.59

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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.