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Finding the Fourth Proportional to 58,459.48, 80,674.86 and 34,585.54

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Solution

The fourth proportional to 58,459.48, 80,674.86 and 34,585.54 is: 47,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,459.48 : 80,674.86 = 34,585.54 : x
  2. Step 2: Convert to fraction form
    58,459.48/80,674.86 = 34,585.54/x
  3. Step 3: Cross multiply
    58,459.48x = 80,674.86 × 34,585.54
  4. Step 4: Simplify right side
    58,459.48x = 2,790,183,597.52
  5. Step 5: Solve for x
    x = 2,790,183,597.52/58,459.48
  6. Step 6: Final answer
    x = 47,728.51

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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.