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Finding the Fourth Proportional to 65,220.61, 98,275.16 and 53,633.91

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Solution

The fourth proportional to 65,220.61, 98,275.16 and 53,633.91 is: 80,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,220.61 : 98,275.16 = 53,633.91 : x
  2. Step 2: Convert to fraction form
    65,220.61/98,275.16 = 53,633.91/x
  3. Step 3: Cross multiply
    65,220.61x = 98,275.16 × 53,633.91
  4. Step 4: Simplify right side
    65,220.61x = 5,270,881,086.68
  5. Step 5: Solve for x
    x = 5,270,881,086.68/65,220.61
  6. Step 6: Final answer
    x = 80,816.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.