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Finding the Fourth Proportional to 68,802.87, 94,948.95 and 51,544.65

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Solution

The fourth proportional to 68,802.87, 94,948.95 and 51,544.65 is: 71,132.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,802.87 : 94,948.95 = 51,544.65 : x
  2. Step 2: Convert to fraction form
    68,802.87/94,948.95 = 51,544.65/x
  3. Step 3: Cross multiply
    68,802.87x = 94,948.95 × 51,544.65
  4. Step 4: Simplify right side
    68,802.87x = 4,894,110,395.62
  5. Step 5: Solve for x
    x = 4,894,110,395.62/68,802.87
  6. Step 6: Final answer
    x = 71,132.36

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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.