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Finding the Fourth Proportional to 65,460.60, 98,190.90 and 48,007.80

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Solution

The fourth proportional to 65,460.60, 98,190.90 and 48,007.80 is: 72,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,460.60 : 98,190.90 = 48,007.80 : x
  2. Step 2: Convert to fraction form
    65,460.60/98,190.90 = 48,007.80/x
  3. Step 3: Cross multiply
    65,460.60x = 98,190.90 × 48,007.80
  4. Step 4: Simplify right side
    65,460.60x = 4,713,929,089.02
  5. Step 5: Solve for x
    x = 4,713,929,089.02/65,460.60
  6. Step 6: Final answer
    x = 72,011.70

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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.