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Finding the Fourth Proportional to 86,585.58, 119,486.93 and 48,345.72

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Solution

The fourth proportional to 86,585.58, 119,486.93 and 48,345.72 is: 66,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585.58 : 119,486.93 = 48,345.72 : x
  2. Step 2: Convert to fraction form
    86,585.58/119,486.93 = 48,345.72/x
  3. Step 3: Cross multiply
    86,585.58x = 119,486.93 × 48,345.72
  4. Step 4: Simplify right side
    86,585.58x = 5,776,681,661.44
  5. Step 5: Solve for x
    x = 5,776,681,661.44/86,585.58
  6. Step 6: Final answer
    x = 66,716.44

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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.