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Finding the Fourth Proportional to 7,288.56, 10,931.80 and 2,357.56

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Solution

The fourth proportional to 7,288.56, 10,931.80 and 2,357.56 is: 3,536.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.56 : 10,931.80 = 2,357.56 : x
  2. Step 2: Convert to fraction form
    7,288.56/10,931.80 = 2,357.56/x
  3. Step 3: Cross multiply
    7,288.56x = 10,931.80 × 2,357.56
  4. Step 4: Simplify right side
    7,288.56x = 25,772,374.41
  5. Step 5: Solve for x
    x = 25,772,374.41/7,288.56
  6. Step 6: Final answer
    x = 3,536.00

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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.