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Finding the Fourth Proportional to 65,730.80, 98,596.20 and 65,039.60

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Solution

The fourth proportional to 65,730.80, 98,596.20 and 65,039.60 is: 97,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,730.80 : 98,596.20 = 65,039.60 : x
  2. Step 2: Convert to fraction form
    65,730.80/98,596.20 = 65,039.60/x
  3. Step 3: Cross multiply
    65,730.80x = 98,596.20 × 65,039.60
  4. Step 4: Simplify right side
    65,730.80x = 6,412,657,409.52
  5. Step 5: Solve for x
    x = 6,412,657,409.52/65,730.80
  6. Step 6: Final answer
    x = 97,559.40

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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.