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Finding the Fourth Proportional to 65,394.34, 90,237.95 and 36,707.43

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Solution

The fourth proportional to 65,394.34, 90,237.95 and 36,707.43 is: 50,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,394.34 : 90,237.95 = 36,707.43 : x
  2. Step 2: Convert to fraction form
    65,394.34/90,237.95 = 36,707.43/x
  3. Step 3: Cross multiply
    65,394.34x = 90,237.95 × 36,707.43
  4. Step 4: Simplify right side
    65,394.34x = 3,312,402,598.24
  5. Step 5: Solve for x
    x = 3,312,402,598.24/65,394.34
  6. Step 6: Final answer
    x = 50,652.75

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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.