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Finding the Fourth Proportional to 7,563.84, 10,437.90 and 4,206.66

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Solution

The fourth proportional to 7,563.84, 10,437.90 and 4,206.66 is: 5,805.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.84 : 10,437.90 = 4,206.66 : x
  2. Step 2: Convert to fraction form
    7,563.84/10,437.90 = 4,206.66/x
  3. Step 3: Cross multiply
    7,563.84x = 10,437.90 × 4,206.66
  4. Step 4: Simplify right side
    7,563.84x = 43,908,696.41
  5. Step 5: Solve for x
    x = 43,908,696.41/7,563.84
  6. Step 6: Final answer
    x = 5,805.08

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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.