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Finding the Fourth Proportional to 7,655.84, 10,569.66 and 5,007.68

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Solution

The fourth proportional to 7,655.84, 10,569.66 and 5,007.68 is: 6,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.84 : 10,569.66 = 5,007.68 : x
  2. Step 2: Convert to fraction form
    7,655.84/10,569.66 = 5,007.68/x
  3. Step 3: Cross multiply
    7,655.84x = 10,569.66 × 5,007.68
  4. Step 4: Simplify right side
    7,655.84x = 52,929,474.99
  5. Step 5: Solve for x
    x = 52,929,474.99/7,655.84
  6. Step 6: Final answer
    x = 6,913.61

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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.