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Finding the Fourth Proportional to 60,812.64, 91,218.96 and 48,578.40

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Solution

The fourth proportional to 60,812.64, 91,218.96 and 48,578.40 is: 72,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,812.64 : 91,218.96 = 48,578.40 : x
  2. Step 2: Convert to fraction form
    60,812.64/91,218.96 = 48,578.40/x
  3. Step 3: Cross multiply
    60,812.64x = 91,218.96 × 48,578.40
  4. Step 4: Simplify right side
    60,812.64x = 4,431,271,126.46
  5. Step 5: Solve for x
    x = 4,431,271,126.46/60,812.64
  6. Step 6: Final answer
    x = 72,867.60

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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.