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Finding the Fourth Proportional to 14,332.77, 19,778.55 and 7,959.77

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Solution

The fourth proportional to 14,332.77, 19,778.55 and 7,959.77 is: 10,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,332.77 : 19,778.55 = 7,959.77 : x
  2. Step 2: Convert to fraction form
    14,332.77/19,778.55 = 7,959.77/x
  3. Step 3: Cross multiply
    14,332.77x = 19,778.55 × 7,959.77
  4. Step 4: Simplify right side
    14,332.77x = 157,432,671.15
  5. Step 5: Solve for x
    x = 157,432,671.15/14,332.77
  6. Step 6: Final answer
    x = 10,984.11

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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.