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Finding the Fourth Proportional to 7,075.68, 10,612.14 and 6,724.45

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Solution

The fourth proportional to 7,075.68, 10,612.14 and 6,724.45 is: 10,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.68 : 10,612.14 = 6,724.45 : x
  2. Step 2: Convert to fraction form
    7,075.68/10,612.14 = 6,724.45/x
  3. Step 3: Cross multiply
    7,075.68x = 10,612.14 × 6,724.45
  4. Step 4: Simplify right side
    7,075.68x = 71,360,804.82
  5. Step 5: Solve for x
    x = 71,360,804.82/7,075.68
  6. Step 6: Final answer
    x = 10,085.36

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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.