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Finding the Fourth Proportional to 52,394.75, 72,144.63 and 39,492.77

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Solution

The fourth proportional to 52,394.75, 72,144.63 and 39,492.77 is: 54,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,394.75 : 72,144.63 = 39,492.77 : x
  2. Step 2: Convert to fraction form
    52,394.75/72,144.63 = 39,492.77/x
  3. Step 3: Cross multiply
    52,394.75x = 72,144.63 × 39,492.77
  4. Step 4: Simplify right side
    52,394.75x = 2,849,190,918.60
  5. Step 5: Solve for x
    x = 2,849,190,918.60/52,394.75
  6. Step 6: Final answer
    x = 54,379.32

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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.