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Finding the Fourth Proportional to 66,496.60, 99,599.10 and 57,748.60

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Solution

The fourth proportional to 66,496.60, 99,599.10 and 57,748.60 is: 86,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.60 : 99,599.10 = 57,748.60 : x
  2. Step 2: Convert to fraction form
    66,496.60/99,599.10 = 57,748.60/x
  3. Step 3: Cross multiply
    66,496.60x = 99,599.10 × 57,748.60
  4. Step 4: Simplify right side
    66,496.60x = 5,751,708,586.26
  5. Step 5: Solve for x
    x = 5,751,708,586.26/66,496.60
  6. Step 6: Final answer
    x = 86,496.28

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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.