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Finding the Fourth Proportional to 64,597.76, 89,135.44 and 35,915.12

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Solution

The fourth proportional to 64,597.76, 89,135.44 and 35,915.12 is: 49,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,597.76 : 89,135.44 = 35,915.12 : x
  2. Step 2: Convert to fraction form
    64,597.76/89,135.44 = 35,915.12/x
  3. Step 3: Cross multiply
    64,597.76x = 89,135.44 × 35,915.12
  4. Step 4: Simplify right side
    64,597.76x = 3,201,310,023.85
  5. Step 5: Solve for x
    x = 3,201,310,023.85/64,597.76
  6. Step 6: Final answer
    x = 49,557.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.