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Finding the Fourth Proportional to 7,925.55, 10,929.26 and 5,801.42

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Solution

The fourth proportional to 7,925.55, 10,929.26 and 5,801.42 is: 8,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.55 : 10,929.26 = 5,801.42 : x
  2. Step 2: Convert to fraction form
    7,925.55/10,929.26 = 5,801.42/x
  3. Step 3: Cross multiply
    7,925.55x = 10,929.26 × 5,801.42
  4. Step 4: Simplify right side
    7,925.55x = 63,405,269.38
  5. Step 5: Solve for x
    x = 63,405,269.38/7,925.55
  6. Step 6: Final answer
    x = 8,000.11

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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.