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Finding the Fourth Proportional to 65,448.71, 98,173.06 and 43,257.49

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Solution

The fourth proportional to 65,448.71, 98,173.06 and 43,257.49 is: 64,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,448.71 : 98,173.06 = 43,257.49 : x
  2. Step 2: Convert to fraction form
    65,448.71/98,173.06 = 43,257.49/x
  3. Step 3: Cross multiply
    65,448.71x = 98,173.06 × 43,257.49
  4. Step 4: Simplify right side
    65,448.71x = 4,246,720,603.19
  5. Step 5: Solve for x
    x = 4,246,720,603.19/65,448.71
  6. Step 6: Final answer
    x = 64,886.24

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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.