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Finding the Fourth Proportional to 79,417.58, 109,588.08 and 47,585.66

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Solution

The fourth proportional to 79,417.58, 109,588.08 and 47,585.66 is: 65,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,417.58 : 109,588.08 = 47,585.66 : x
  2. Step 2: Convert to fraction form
    79,417.58/109,588.08 = 47,585.66/x
  3. Step 3: Cross multiply
    79,417.58x = 109,588.08 × 47,585.66
  4. Step 4: Simplify right side
    79,417.58x = 5,214,821,114.93
  5. Step 5: Solve for x
    x = 5,214,821,114.93/79,417.58
  6. Step 6: Final answer
    x = 65,663.31

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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.