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Finding the Fourth Proportional to 7,036.76, 9,710.73 and 4,242.80

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Solution

The fourth proportional to 7,036.76, 9,710.73 and 4,242.80 is: 5,855.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,036.76 : 9,710.73 = 4,242.80 : x
  2. Step 2: Convert to fraction form
    7,036.76/9,710.73 = 4,242.80/x
  3. Step 3: Cross multiply
    7,036.76x = 9,710.73 × 4,242.80
  4. Step 4: Simplify right side
    7,036.76x = 41,200,685.24
  5. Step 5: Solve for x
    x = 41,200,685.24/7,036.76
  6. Step 6: Final answer
    x = 5,855.06

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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.