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Finding the Fourth Proportional to 65,805.44, 98,708.16 and 38,088.32

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Solution

The fourth proportional to 65,805.44, 98,708.16 and 38,088.32 is: 57,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,805.44 : 98,708.16 = 38,088.32 : x
  2. Step 2: Convert to fraction form
    65,805.44/98,708.16 = 38,088.32/x
  3. Step 3: Cross multiply
    65,805.44x = 98,708.16 × 38,088.32
  4. Step 4: Simplify right side
    65,805.44x = 3,759,627,984.69
  5. Step 5: Solve for x
    x = 3,759,627,984.69/65,805.44
  6. Step 6: Final answer
    x = 57,132.48

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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.