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Finding the Fourth Proportional to 74,838.92, 112,225.24 and 28,058.96

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Solution

The fourth proportional to 74,838.92, 112,225.24 and 28,058.96 is: 42,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,838.92 : 112,225.24 = 28,058.96 : x
  2. Step 2: Convert to fraction form
    74,838.92/112,225.24 = 28,058.96/x
  3. Step 3: Cross multiply
    74,838.92x = 112,225.24 × 28,058.96
  4. Step 4: Simplify right side
    74,838.92x = 3,148,923,520.15
  5. Step 5: Solve for x
    x = 3,148,923,520.15/74,838.92
  6. Step 6: Final answer
    x = 42,076.01

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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.