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Finding the Fourth Proportional to 63,409.95, 87,505.70 and 35,115.62

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Solution

The fourth proportional to 63,409.95, 87,505.70 and 35,115.62 is: 48,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,409.95 : 87,505.70 = 35,115.62 : x
  2. Step 2: Convert to fraction form
    63,409.95/87,505.70 = 35,115.62/x
  3. Step 3: Cross multiply
    63,409.95x = 87,505.70 × 35,115.62
  4. Step 4: Simplify right side
    63,409.95x = 3,072,816,295.93
  5. Step 5: Solve for x
    x = 3,072,816,295.93/63,409.95
  6. Step 6: Final answer
    x = 48,459.53

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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.