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Finding the Fourth Proportional to 65,735.52, 98,554.04 and 21,335.76

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Solution

The fourth proportional to 65,735.52, 98,554.04 and 21,335.76 is: 31,987.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,735.52 : 98,554.04 = 21,335.76 : x
  2. Step 2: Convert to fraction form
    65,735.52/98,554.04 = 21,335.76/x
  3. Step 3: Cross multiply
    65,735.52x = 98,554.04 × 21,335.76
  4. Step 4: Simplify right side
    65,735.52x = 2,102,725,344.47
  5. Step 5: Solve for x
    x = 2,102,725,344.47/65,735.52
  6. Step 6: Final answer
    x = 31,987.66

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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.