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Finding the Fourth Proportional to 7,574.04, 11,368.10 and 3,878.92

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Solution

The fourth proportional to 7,574.04, 11,368.10 and 3,878.92 is: 5,821.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.04 : 11,368.10 = 3,878.92 : x
  2. Step 2: Convert to fraction form
    7,574.04/11,368.10 = 3,878.92/x
  3. Step 3: Cross multiply
    7,574.04x = 11,368.10 × 3,878.92
  4. Step 4: Simplify right side
    7,574.04x = 44,095,950.45
  5. Step 5: Solve for x
    x = 44,095,950.45/7,574.04
  6. Step 6: Final answer
    x = 5,821.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.