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Finding the Fourth Proportional to 7,851.02, 11,764.74 and 7,110.14

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Solution

The fourth proportional to 7,851.02, 11,764.74 and 7,110.14 is: 10,654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.02 : 11,764.74 = 7,110.14 : x
  2. Step 2: Convert to fraction form
    7,851.02/11,764.74 = 7,110.14/x
  3. Step 3: Cross multiply
    7,851.02x = 11,764.74 × 7,110.14
  4. Step 4: Simplify right side
    7,851.02x = 83,648,948.46
  5. Step 5: Solve for x
    x = 83,648,948.46/7,851.02
  6. Step 6: Final answer
    x = 10,654.53

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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.