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Finding the Fourth Proportional to 92,820.90, 128,092.76 and 52,533.94

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Solution

The fourth proportional to 92,820.90, 128,092.76 and 52,533.94 is: 72,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,820.90 : 128,092.76 = 52,533.94 : x
  2. Step 2: Convert to fraction form
    92,820.90/128,092.76 = 52,533.94/x
  3. Step 3: Cross multiply
    92,820.90x = 128,092.76 × 52,533.94
  4. Step 4: Simplify right side
    92,820.90x = 6,729,217,368.27
  5. Step 5: Solve for x
    x = 6,729,217,368.27/92,820.90
  6. Step 6: Final answer
    x = 72,496.79

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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.