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Finding the Fourth Proportional to 61,894.08, 85,415.58 and 36,402.30

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Solution

The fourth proportional to 61,894.08, 85,415.58 and 36,402.30 is: 50,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,894.08 : 85,415.58 = 36,402.30 : x
  2. Step 2: Convert to fraction form
    61,894.08/85,415.58 = 36,402.30/x
  3. Step 3: Cross multiply
    61,894.08x = 85,415.58 × 36,402.30
  4. Step 4: Simplify right side
    61,894.08x = 3,109,323,567.83
  5. Step 5: Solve for x
    x = 3,109,323,567.83/61,894.08
  6. Step 6: Final answer
    x = 50,236.20

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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.