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Finding the Fourth Proportional to 79,417.67, 109,599.95 and 47,585.88

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Solution

The fourth proportional to 79,417.67, 109,599.95 and 47,585.88 is: 65,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,417.67 : 109,599.95 = 47,585.88 : x
  2. Step 2: Convert to fraction form
    79,417.67/109,599.95 = 47,585.88/x
  3. Step 3: Cross multiply
    79,417.67x = 109,599.95 × 47,585.88
  4. Step 4: Simplify right side
    79,417.67x = 5,215,410,187.67
  5. Step 5: Solve for x
    x = 5,215,410,187.67/79,417.67
  6. Step 6: Final answer
    x = 65,670.66

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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.