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Finding the Fourth Proportional to 83,975.88, 115,894.90 and 62,718.24

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Solution

The fourth proportional to 83,975.88, 115,894.90 and 62,718.24 is: 86,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,975.88 : 115,894.90 = 62,718.24 : x
  2. Step 2: Convert to fraction form
    83,975.88/115,894.90 = 62,718.24/x
  3. Step 3: Cross multiply
    83,975.88x = 115,894.90 × 62,718.24
  4. Step 4: Simplify right side
    83,975.88x = 7,268,724,152.98
  5. Step 5: Solve for x
    x = 7,268,724,152.98/83,975.88
  6. Step 6: Final answer
    x = 86,557.28

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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.