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Finding the Fourth Proportional to 65,486.64, 98,248.08 and 26,071.42

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Solution

The fourth proportional to 65,486.64, 98,248.08 and 26,071.42 is: 39,114.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,486.64 : 98,248.08 = 26,071.42 : x
  2. Step 2: Convert to fraction form
    65,486.64/98,248.08 = 26,071.42/x
  3. Step 3: Cross multiply
    65,486.64x = 98,248.08 × 26,071.42
  4. Step 4: Simplify right side
    65,486.64x = 2,561,466,957.87
  5. Step 5: Solve for x
    x = 2,561,466,957.87/65,486.64
  6. Step 6: Final answer
    x = 39,114.34

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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.