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Finding the Fourth Proportional to 66,343.92, 91,573.92 and 53,008.08

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Solution

The fourth proportional to 66,343.92, 91,573.92 and 53,008.08 is: 73,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,343.92 : 91,573.92 = 53,008.08 : x
  2. Step 2: Convert to fraction form
    66,343.92/91,573.92 = 53,008.08/x
  3. Step 3: Cross multiply
    66,343.92x = 91,573.92 × 53,008.08
  4. Step 4: Simplify right side
    66,343.92x = 4,854,157,677.27
  5. Step 5: Solve for x
    x = 4,854,157,677.27/66,343.92
  6. Step 6: Final answer
    x = 73,166.58

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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.