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Finding the Fourth Proportional to 65,533.50, 90,436.23 and 35,725.50

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Solution

The fourth proportional to 65,533.50, 90,436.23 and 35,725.50 is: 49,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,533.50 : 90,436.23 = 35,725.50 : x
  2. Step 2: Convert to fraction form
    65,533.50/90,436.23 = 35,725.50/x
  3. Step 3: Cross multiply
    65,533.50x = 90,436.23 × 35,725.50
  4. Step 4: Simplify right side
    65,533.50x = 3,230,879,534.87
  5. Step 5: Solve for x
    x = 3,230,879,534.87/65,533.50
  6. Step 6: Final answer
    x = 49,301.19

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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.