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Finding the Fourth Proportional to 65,813.40, 98,728.20 and 23,686.92

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Solution

The fourth proportional to 65,813.40, 98,728.20 and 23,686.92 is: 35,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,813.40 : 98,728.20 = 23,686.92 : x
  2. Step 2: Convert to fraction form
    65,813.40/98,728.20 = 23,686.92/x
  3. Step 3: Cross multiply
    65,813.40x = 98,728.20 × 23,686.92
  4. Step 4: Simplify right side
    65,813.40x = 2,338,566,975.14
  5. Step 5: Solve for x
    x = 2,338,566,975.14/65,813.40
  6. Step 6: Final answer
    x = 35,533.30

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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.