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Finding the Fourth Proportional to 66,856.76, 100,059.10 and 65,057.63

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Solution

The fourth proportional to 66,856.76, 100,059.10 and 65,057.63 is: 97,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,856.76 : 100,059.10 = 65,057.63 : x
  2. Step 2: Convert to fraction form
    66,856.76/100,059.10 = 65,057.63/x
  3. Step 3: Cross multiply
    66,856.76x = 100,059.10 × 65,057.63
  4. Step 4: Simplify right side
    66,856.76x = 6,509,607,612.03
  5. Step 5: Solve for x
    x = 6,509,607,612.03/66,856.76
  6. Step 6: Final answer
    x = 97,366.48

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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.