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Finding the Fourth Proportional to 65,473.92, 98,210.88 and 30,423.60

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Solution

The fourth proportional to 65,473.92, 98,210.88 and 30,423.60 is: 45,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,473.92 : 98,210.88 = 30,423.60 : x
  2. Step 2: Convert to fraction form
    65,473.92/98,210.88 = 30,423.60/x
  3. Step 3: Cross multiply
    65,473.92x = 98,210.88 × 30,423.60
  4. Step 4: Simplify right side
    65,473.92x = 2,987,928,528.77
  5. Step 5: Solve for x
    x = 2,987,928,528.77/65,473.92
  6. Step 6: Final answer
    x = 45,635.40

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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.