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Finding the Fourth Proportional to 65,063.93, 89,788.92 and 38,206.76

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Solution

The fourth proportional to 65,063.93, 89,788.92 and 38,206.76 is: 52,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,063.93 : 89,788.92 = 38,206.76 : x
  2. Step 2: Convert to fraction form
    65,063.93/89,788.92 = 38,206.76/x
  3. Step 3: Cross multiply
    65,063.93x = 89,788.92 × 38,206.76
  4. Step 4: Simplify right side
    65,063.93x = 3,430,543,717.10
  5. Step 5: Solve for x
    x = 3,430,543,717.10/65,063.93
  6. Step 6: Final answer
    x = 52,725.74

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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.