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Finding the Fourth Proportional to 65,861.52, 98,795.52 and 19,118.04

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Solution

The fourth proportional to 65,861.52, 98,795.52 and 19,118.04 is: 28,678.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.52 : 98,795.52 = 19,118.04 : x
  2. Step 2: Convert to fraction form
    65,861.52/98,795.52 = 19,118.04/x
  3. Step 3: Cross multiply
    65,861.52x = 98,795.52 × 19,118.04
  4. Step 4: Simplify right side
    65,861.52x = 1,888,776,703.18
  5. Step 5: Solve for x
    x = 1,888,776,703.18/65,861.52
  6. Step 6: Final answer
    x = 28,678.00

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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.