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Finding the Fourth Proportional to 7,295.60, 10,925.92 and 5,315.92

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Solution

The fourth proportional to 7,295.60, 10,925.92 and 5,315.92 is: 7,961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,295.60 : 10,925.92 = 5,315.92 : x
  2. Step 2: Convert to fraction form
    7,295.60/10,925.92 = 5,315.92/x
  3. Step 3: Cross multiply
    7,295.60x = 10,925.92 × 5,315.92
  4. Step 4: Simplify right side
    7,295.60x = 58,081,316.65
  5. Step 5: Solve for x
    x = 58,081,316.65/7,295.60
  6. Step 6: Final answer
    x = 7,961.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.