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Finding the Fourth Proportional to 6,484.84, 9,708.90 and 5,040.88

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Solution

The fourth proportional to 6,484.84, 9,708.90 and 5,040.88 is: 7,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,484.84 : 9,708.90 = 5,040.88 : x
  2. Step 2: Convert to fraction form
    6,484.84/9,708.90 = 5,040.88/x
  3. Step 3: Cross multiply
    6,484.84x = 9,708.90 × 5,040.88
  4. Step 4: Simplify right side
    6,484.84x = 48,941,399.83
  5. Step 5: Solve for x
    x = 48,941,399.83/6,484.84
  6. Step 6: Final answer
    x = 7,547.05

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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.