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Finding the Fourth Proportional to 7,555.40, 11,237.96 and 7,530.10

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Solution

The fourth proportional to 7,555.40, 11,237.96 and 7,530.10 is: 11,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.40 : 11,237.96 = 7,530.10 : x
  2. Step 2: Convert to fraction form
    7,555.40/11,237.96 = 7,530.10/x
  3. Step 3: Cross multiply
    7,555.40x = 11,237.96 × 7,530.10
  4. Step 4: Simplify right side
    7,555.40x = 84,622,962.60
  5. Step 5: Solve for x
    x = 84,622,962.60/7,555.40
  6. Step 6: Final answer
    x = 11,200.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.