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Finding the Fourth Proportional to 83,980.71, 115,893.36 and 46,254.96

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Solution

The fourth proportional to 83,980.71, 115,893.36 and 46,254.96 is: 63,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,980.71 : 115,893.36 = 46,254.96 : x
  2. Step 2: Convert to fraction form
    83,980.71/115,893.36 = 46,254.96/x
  3. Step 3: Cross multiply
    83,980.71x = 115,893.36 × 46,254.96
  4. Step 4: Simplify right side
    83,980.71x = 5,360,642,731.07
  5. Step 5: Solve for x
    x = 5,360,642,731.07/83,980.71
  6. Step 6: Final answer
    x = 63,831.83

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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.