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Finding the Fourth Proportional to 7,004.49, 9,678.50 and 5,599.77

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Solution

The fourth proportional to 7,004.49, 9,678.50 and 5,599.77 is: 7,737.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,004.49 : 9,678.50 = 5,599.77 : x
  2. Step 2: Convert to fraction form
    7,004.49/9,678.50 = 5,599.77/x
  3. Step 3: Cross multiply
    7,004.49x = 9,678.50 × 5,599.77
  4. Step 4: Simplify right side
    7,004.49x = 54,197,345.95
  5. Step 5: Solve for x
    x = 54,197,345.95/7,004.49
  6. Step 6: Final answer
    x = 7,737.51

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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.