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Finding the Fourth Proportional to 7,357.92, 10,957.98 and 7,315.80

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Solution

The fourth proportional to 7,357.92, 10,957.98 and 7,315.80 is: 10,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,357.92 : 10,957.98 = 7,315.80 : x
  2. Step 2: Convert to fraction form
    7,357.92/10,957.98 = 7,315.80/x
  3. Step 3: Cross multiply
    7,357.92x = 10,957.98 × 7,315.80
  4. Step 4: Simplify right side
    7,357.92x = 80,166,390.08
  5. Step 5: Solve for x
    x = 80,166,390.08/7,357.92
  6. Step 6: Final answer
    x = 10,895.25

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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.