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Finding the Fourth Proportional to 48,345, 66,716.12 and 29,486.04

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Solution

The fourth proportional to 48,345, 66,716.12 and 29,486.04 is: 40,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,345 : 66,716.12 = 29,486.04 : x
  2. Step 2: Convert to fraction form
    48,345/66,716.12 = 29,486.04/x
  3. Step 3: Cross multiply
    48,345x = 66,716.12 × 29,486.04
  4. Step 4: Simplify right side
    48,345x = 1,967,194,182.96
  5. Step 5: Solve for x
    x = 1,967,194,182.96/48,345
  6. Step 6: Final answer
    x = 40,690.75

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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.