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Finding the Fourth Proportional to 39,462.08, 54,347.08 and 39,339.12

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Solution

The fourth proportional to 39,462.08, 54,347.08 and 39,339.12 is: 54,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.08 : 54,347.08 = 39,339.12 : x
  2. Step 2: Convert to fraction form
    39,462.08/54,347.08 = 39,339.12/x
  3. Step 3: Cross multiply
    39,462.08x = 54,347.08 × 39,339.12
  4. Step 4: Simplify right side
    39,462.08x = 2,137,966,301.77
  5. Step 5: Solve for x
    x = 2,137,966,301.77/39,462.08
  6. Step 6: Final answer
    x = 54,177.74

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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.