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Finding the Fourth Proportional to 7,240.55, 9,994.34 and 4,256.24

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Solution

The fourth proportional to 7,240.55, 9,994.34 and 4,256.24 is: 5,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.55 : 9,994.34 = 4,256.24 : x
  2. Step 2: Convert to fraction form
    7,240.55/9,994.34 = 4,256.24/x
  3. Step 3: Cross multiply
    7,240.55x = 9,994.34 × 4,256.24
  4. Step 4: Simplify right side
    7,240.55x = 42,538,288.40
  5. Step 5: Solve for x
    x = 42,538,288.40/7,240.55
  6. Step 6: Final answer
    x = 5,875.01

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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.