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Finding the Fourth Proportional to 72,774.15, 100,395.11 and 52,599.08

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Solution

The fourth proportional to 72,774.15, 100,395.11 and 52,599.08 is: 72,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,774.15 : 100,395.11 = 52,599.08 : x
  2. Step 2: Convert to fraction form
    72,774.15/100,395.11 = 52,599.08/x
  3. Step 3: Cross multiply
    72,774.15x = 100,395.11 × 52,599.08
  4. Step 4: Simplify right side
    72,774.15x = 5,280,689,657.53
  5. Step 5: Solve for x
    x = 5,280,689,657.53/72,774.15
  6. Step 6: Final answer
    x = 72,562.71

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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.