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Finding the Fourth Proportional to 7,994.01, 11,031.48 and 5,011.47

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Solution

The fourth proportional to 7,994.01, 11,031.48 and 5,011.47 is: 6,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.01 : 11,031.48 = 5,011.47 : x
  2. Step 2: Convert to fraction form
    7,994.01/11,031.48 = 5,011.47/x
  3. Step 3: Cross multiply
    7,994.01x = 11,031.48 × 5,011.47
  4. Step 4: Simplify right side
    7,994.01x = 55,283,931.08
  5. Step 5: Solve for x
    x = 55,283,931.08/7,994.01
  6. Step 6: Final answer
    x = 6,915.67

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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.