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Finding the Fourth Proportional to 64,479.92, 88,990.98 and 36,187.16

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Solution

The fourth proportional to 64,479.92, 88,990.98 and 36,187.16 is: 49,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,479.92 : 88,990.98 = 36,187.16 : x
  2. Step 2: Convert to fraction form
    64,479.92/88,990.98 = 36,187.16/x
  3. Step 3: Cross multiply
    64,479.92x = 88,990.98 × 36,187.16
  4. Step 4: Simplify right side
    64,479.92x = 3,220,330,831.82
  5. Step 5: Solve for x
    x = 3,220,330,831.82/64,479.92
  6. Step 6: Final answer
    x = 49,943.16

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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.