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Finding the Fourth Proportional to 65,915.52, 98,883.18 and 19,162.32

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Solution

The fourth proportional to 65,915.52, 98,883.18 and 19,162.32 is: 28,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.52 : 98,883.18 = 19,162.32 : x
  2. Step 2: Convert to fraction form
    65,915.52/98,883.18 = 19,162.32/x
  3. Step 3: Cross multiply
    65,915.52x = 98,883.18 × 19,162.32
  4. Step 4: Simplify right side
    65,915.52x = 1,894,831,137.78
  5. Step 5: Solve for x
    x = 1,894,831,137.78/65,915.52
  6. Step 6: Final answer
    x = 28,746.36

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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.