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Finding the Fourth Proportional to 5,661.32, 7,795.20 and 5,030.76

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Solution

The fourth proportional to 5,661.32, 7,795.20 and 5,030.76 is: 6,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.32 : 7,795.20 = 5,030.76 : x
  2. Step 2: Convert to fraction form
    5,661.32/7,795.20 = 5,030.76/x
  3. Step 3: Cross multiply
    5,661.32x = 7,795.20 × 5,030.76
  4. Step 4: Simplify right side
    5,661.32x = 39,215,780.35
  5. Step 5: Solve for x
    x = 39,215,780.35/5,661.32
  6. Step 6: Final answer
    x = 6,926.97

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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.