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Finding the Fourth Proportional to 35,424.34, 48,880.53 and 19,509.80

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Solution

The fourth proportional to 35,424.34, 48,880.53 and 19,509.80 is: 26,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,424.34 : 48,880.53 = 19,509.80 : x
  2. Step 2: Convert to fraction form
    35,424.34/48,880.53 = 19,509.80/x
  3. Step 3: Cross multiply
    35,424.34x = 48,880.53 × 19,509.80
  4. Step 4: Simplify right side
    35,424.34x = 953,649,119.79
  5. Step 5: Solve for x
    x = 953,649,119.79/35,424.34
  6. Step 6: Final answer
    x = 26,920.73

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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.