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Finding the Fourth Proportional to 65,910.58, 98,931.50 and 36,342.34

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Solution

The fourth proportional to 65,910.58, 98,931.50 and 36,342.34 is: 54,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,910.58 : 98,931.50 = 36,342.34 : x
  2. Step 2: Convert to fraction form
    65,910.58/98,931.50 = 36,342.34/x
  3. Step 3: Cross multiply
    65,910.58x = 98,931.50 × 36,342.34
  4. Step 4: Simplify right side
    65,910.58x = 3,595,402,209.71
  5. Step 5: Solve for x
    x = 3,595,402,209.71/65,910.58
  6. Step 6: Final answer
    x = 54,549.70

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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.