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Finding the Fourth Proportional to 7,329.70, 9,927.90 and 7,329.70

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Solution

The fourth proportional to 7,329.70, 9,927.90 and 7,329.70 is: 9,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.70 : 9,927.90 = 7,329.70 : x
  2. Step 2: Convert to fraction form
    7,329.70/9,927.90 = 7,329.70/x
  3. Step 3: Cross multiply
    7,329.70x = 9,927.90 × 7,329.70
  4. Step 4: Simplify right side
    7,329.70x = 72,768,528.63
  5. Step 5: Solve for x
    x = 72,768,528.63/7,329.70
  6. Step 6: Final answer
    x = 9,927.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.