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Finding the Fourth Proportional to 7,509.23, 11,200.37 and 7,075.61

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Solution

The fourth proportional to 7,509.23, 11,200.37 and 7,075.61 is: 10,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.23 : 11,200.37 = 7,075.61 : x
  2. Step 2: Convert to fraction form
    7,509.23/11,200.37 = 7,075.61/x
  3. Step 3: Cross multiply
    7,509.23x = 11,200.37 × 7,075.61
  4. Step 4: Simplify right side
    7,509.23x = 79,249,358.60
  5. Step 5: Solve for x
    x = 79,249,358.60/7,509.23
  6. Step 6: Final answer
    x = 10,553.60

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Half scale
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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.