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Finding the Fourth Proportional to 48,478.75, 66,845.51 and 34,133.99

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Solution

The fourth proportional to 48,478.75, 66,845.51 and 34,133.99 is: 47,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,478.75 : 66,845.51 = 34,133.99 : x
  2. Step 2: Convert to fraction form
    48,478.75/66,845.51 = 34,133.99/x
  3. Step 3: Cross multiply
    48,478.75x = 66,845.51 × 34,133.99
  4. Step 4: Simplify right side
    48,478.75x = 2,281,704,328.11
  5. Step 5: Solve for x
    x = 2,281,704,328.11/48,478.75
  6. Step 6: Final answer
    x = 47,066.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.