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Finding the Fourth Proportional to 5,569.99, 7,689.14 and 4,810.75

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Solution

The fourth proportional to 5,569.99, 7,689.14 and 4,810.75 is: 6,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,569.99 : 7,689.14 = 4,810.75 : x
  2. Step 2: Convert to fraction form
    5,569.99/7,689.14 = 4,810.75/x
  3. Step 3: Cross multiply
    5,569.99x = 7,689.14 × 4,810.75
  4. Step 4: Simplify right side
    5,569.99x = 36,990,530.26
  5. Step 5: Solve for x
    x = 36,990,530.26/5,569.99
  6. Step 6: Final answer
    x = 6,641.04

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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.