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Finding the Fourth Proportional to 68,291.52, 101,982 and 64,792.32

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Solution

The fourth proportional to 68,291.52, 101,982 and 64,792.32 is: 96,756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,291.52 : 101,982 = 64,792.32 : x
  2. Step 2: Convert to fraction form
    68,291.52/101,982 = 64,792.32/x
  3. Step 3: Cross multiply
    68,291.52x = 101,982 × 64,792.32
  4. Step 4: Simplify right side
    68,291.52x = 6,607,650,378.24
  5. Step 5: Solve for x
    x = 6,607,650,378.24/68,291.52
  6. Step 6: Final answer
    x = 96,756.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.