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Finding the Fourth Proportional to 65,393.85, 98,091.68 and 18,646.72

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Solution

The fourth proportional to 65,393.85, 98,091.68 and 18,646.72 is: 27,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,393.85 : 98,091.68 = 18,646.72 : x
  2. Step 2: Convert to fraction form
    65,393.85/98,091.68 = 18,646.72/x
  3. Step 3: Cross multiply
    65,393.85x = 98,091.68 × 18,646.72
  4. Step 4: Simplify right side
    65,393.85x = 1,829,088,091.29
  5. Step 5: Solve for x
    x = 1,829,088,091.29/65,393.85
  6. Step 6: Final answer
    x = 27,970.34

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1.5x scale

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.