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Finding the Fourth Proportional to 58,277.92, 87,394.68 and 20,831.08

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Solution

The fourth proportional to 58,277.92, 87,394.68 and 20,831.08 is: 31,238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,277.92 : 87,394.68 = 20,831.08 : x
  2. Step 2: Convert to fraction form
    58,277.92/87,394.68 = 20,831.08/x
  3. Step 3: Cross multiply
    58,277.92x = 87,394.68 × 20,831.08
  4. Step 4: Simplify right side
    58,277.92x = 1,820,525,570.65
  5. Step 5: Solve for x
    x = 1,820,525,570.65/58,277.92
  6. Step 6: Final answer
    x = 31,238.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.