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Finding the Fourth Proportional to 85,322.01, 127,928.25 and 35,436.54

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Solution

The fourth proportional to 85,322.01, 127,928.25 and 35,436.54 is: 53,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,322.01 : 127,928.25 = 35,436.54 : x
  2. Step 2: Convert to fraction form
    85,322.01/127,928.25 = 35,436.54/x
  3. Step 3: Cross multiply
    85,322.01x = 127,928.25 × 35,436.54
  4. Step 4: Simplify right side
    85,322.01x = 4,533,334,548.26
  5. Step 5: Solve for x
    x = 4,533,334,548.26/85,322.01
  6. Step 6: Final answer
    x = 53,132.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.