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Finding the Fourth Proportional to 10,569.88, 15,860.49 and 5,019.76

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Solution

The fourth proportional to 10,569.88, 15,860.49 and 5,019.76 is: 7,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,569.88 : 15,860.49 = 5,019.76 : x
  2. Step 2: Convert to fraction form
    10,569.88/15,860.49 = 5,019.76/x
  3. Step 3: Cross multiply
    10,569.88x = 15,860.49 × 5,019.76
  4. Step 4: Simplify right side
    10,569.88x = 79,615,853.28
  5. Step 5: Solve for x
    x = 79,615,853.28/10,569.88
  6. Step 6: Final answer
    x = 7,532.33

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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.