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Finding the Fourth Proportional to 70,114.66, 96,767.40 and 39,894.12

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Solution

The fourth proportional to 70,114.66, 96,767.40 and 39,894.12 is: 55,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,114.66 : 96,767.40 = 39,894.12 : x
  2. Step 2: Convert to fraction form
    70,114.66/96,767.40 = 39,894.12/x
  3. Step 3: Cross multiply
    70,114.66x = 96,767.40 × 39,894.12
  4. Step 4: Simplify right side
    70,114.66x = 3,860,450,267.69
  5. Step 5: Solve for x
    x = 3,860,450,267.69/70,114.66
  6. Step 6: Final answer
    x = 55,059.10

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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.