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Finding the Fourth Proportional to 58,440.42, 80,647.80 and 31,582.92

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Solution

The fourth proportional to 58,440.42, 80,647.80 and 31,582.92 is: 43,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,440.42 : 80,647.80 = 31,582.92 : x
  2. Step 2: Convert to fraction form
    58,440.42/80,647.80 = 31,582.92/x
  3. Step 3: Cross multiply
    58,440.42x = 80,647.80 × 31,582.92
  4. Step 4: Simplify right side
    58,440.42x = 2,547,093,015.58
  5. Step 5: Solve for x
    x = 2,547,093,015.58/58,440.42
  6. Step 6: Final answer
    x = 43,584.44

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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.