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Finding the Fourth Proportional to 65,809.68, 98,712.88 and 30,788.52

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Solution

The fourth proportional to 65,809.68, 98,712.88 and 30,788.52 is: 46,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,809.68 : 98,712.88 = 30,788.52 : x
  2. Step 2: Convert to fraction form
    65,809.68/98,712.88 = 30,788.52/x
  3. Step 3: Cross multiply
    65,809.68x = 98,712.88 × 30,788.52
  4. Step 4: Simplify right side
    65,809.68x = 3,039,223,480.14
  5. Step 5: Solve for x
    x = 3,039,223,480.14/65,809.68
  6. Step 6: Final answer
    x = 46,182.01

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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.