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Finding the Fourth Proportional to 39,775.77, 59,662.59 and 9,790.28

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Solution

The fourth proportional to 39,775.77, 59,662.59 and 9,790.28 is: 14,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,775.77 : 59,662.59 = 9,790.28 : x
  2. Step 2: Convert to fraction form
    39,775.77/59,662.59 = 9,790.28/x
  3. Step 3: Cross multiply
    39,775.77x = 59,662.59 × 9,790.28
  4. Step 4: Simplify right side
    39,775.77x = 584,113,461.63
  5. Step 5: Solve for x
    x = 584,113,461.63/39,775.77
  6. Step 6: Final answer
    x = 14,685.16

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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.