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Finding the Fourth Proportional to 4,547.49, 6,829.29 and 2,990.67

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Solution

The fourth proportional to 4,547.49, 6,829.29 and 2,990.67 is: 4,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547.49 : 6,829.29 = 2,990.67 : x
  2. Step 2: Convert to fraction form
    4,547.49/6,829.29 = 2,990.67/x
  3. Step 3: Cross multiply
    4,547.49x = 6,829.29 × 2,990.67
  4. Step 4: Simplify right side
    4,547.49x = 20,424,152.72
  5. Step 5: Solve for x
    x = 20,424,152.72/4,547.49
  6. Step 6: Final answer
    x = 4,491.30

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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.