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Finding the Fourth Proportional to 71,672.87, 107,050.98 and 64,908.39

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Solution

The fourth proportional to 71,672.87, 107,050.98 and 64,908.39 is: 96,947.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,672.87 : 107,050.98 = 64,908.39 : x
  2. Step 2: Convert to fraction form
    71,672.87/107,050.98 = 64,908.39/x
  3. Step 3: Cross multiply
    71,672.87x = 107,050.98 × 64,908.39
  4. Step 4: Simplify right side
    71,672.87x = 6,948,506,802.41
  5. Step 5: Solve for x
    x = 6,948,506,802.41/71,672.87
  6. Step 6: Final answer
    x = 96,947.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.