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Finding the Fourth Proportional to 7,752.71, 10,698.95 and 4,395.38

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Solution

The fourth proportional to 7,752.71, 10,698.95 and 4,395.38 is: 6,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.71 : 10,698.95 = 4,395.38 : x
  2. Step 2: Convert to fraction form
    7,752.71/10,698.95 = 4,395.38/x
  3. Step 3: Cross multiply
    7,752.71x = 10,698.95 × 4,395.38
  4. Step 4: Simplify right side
    7,752.71x = 47,025,950.85
  5. Step 5: Solve for x
    x = 47,025,950.85/7,752.71
  6. Step 6: Final answer
    x = 6,065.74

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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.