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Finding the Fourth Proportional to 68,095.88, 93,970.60 and 39,411.58

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Solution

The fourth proportional to 68,095.88, 93,970.60 and 39,411.58 is: 54,386.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,095.88 : 93,970.60 = 39,411.58 : x
  2. Step 2: Convert to fraction form
    68,095.88/93,970.60 = 39,411.58/x
  3. Step 3: Cross multiply
    68,095.88x = 93,970.60 × 39,411.58
  4. Step 4: Simplify right side
    68,095.88x = 3,703,529,819.55
  5. Step 5: Solve for x
    x = 3,703,529,819.55/68,095.88
  6. Step 6: Final answer
    x = 54,386.99

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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.