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Finding the Fourth Proportional to 7,305.01, 10,075.47 and 4,914.20

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Solution

The fourth proportional to 7,305.01, 10,075.47 and 4,914.20 is: 6,777.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.01 : 10,075.47 = 4,914.20 : x
  2. Step 2: Convert to fraction form
    7,305.01/10,075.47 = 4,914.20/x
  3. Step 3: Cross multiply
    7,305.01x = 10,075.47 × 4,914.20
  4. Step 4: Simplify right side
    7,305.01x = 49,512,874.67
  5. Step 5: Solve for x
    x = 49,512,874.67/7,305.01
  6. Step 6: Final answer
    x = 6,777.93

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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.