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Finding the Fourth Proportional to 39,216.77, 58,825.76 and 12,567.77

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Solution

The fourth proportional to 39,216.77, 58,825.76 and 12,567.77 is: 18,851.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.77 : 58,825.76 = 12,567.77 : x
  2. Step 2: Convert to fraction form
    39,216.77/58,825.76 = 12,567.77/x
  3. Step 3: Cross multiply
    39,216.77x = 58,825.76 × 12,567.77
  4. Step 4: Simplify right side
    39,216.77x = 739,308,264.79
  5. Step 5: Solve for x
    x = 739,308,264.79/39,216.77
  6. Step 6: Final answer
    x = 18,851.84

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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.