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Finding the Fourth Proportional to 86,666.76, 119,605.68 and 48,426.42

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Solution

The fourth proportional to 86,666.76, 119,605.68 and 48,426.42 is: 66,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,666.76 : 119,605.68 = 48,426.42 : x
  2. Step 2: Convert to fraction form
    86,666.76/119,605.68 = 48,426.42/x
  3. Step 3: Cross multiply
    86,666.76x = 119,605.68 × 48,426.42
  4. Step 4: Simplify right side
    86,666.76x = 5,792,074,894.07
  5. Step 5: Solve for x
    x = 5,792,074,894.07/86,666.76
  6. Step 6: Final answer
    x = 66,831.56

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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.