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Finding the Fourth Proportional to 66,258.68, 99,388.08 and 16,339.60

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Solution

The fourth proportional to 66,258.68, 99,388.08 and 16,339.60 is: 24,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,258.68 : 99,388.08 = 16,339.60 : x
  2. Step 2: Convert to fraction form
    66,258.68/99,388.08 = 16,339.60/x
  3. Step 3: Cross multiply
    66,258.68x = 99,388.08 × 16,339.60
  4. Step 4: Simplify right side
    66,258.68x = 1,623,961,471.97
  5. Step 5: Solve for x
    x = 1,623,961,471.97/66,258.68
  6. Step 6: Final answer
    x = 24,509.41

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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.