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Finding the Fourth Proportional to 14,009.55, 19,332.92 and 7,636.20

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Solution

The fourth proportional to 14,009.55, 19,332.92 and 7,636.20 is: 10,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.55 : 19,332.92 = 7,636.20 : x
  2. Step 2: Convert to fraction form
    14,009.55/19,332.92 = 7,636.20/x
  3. Step 3: Cross multiply
    14,009.55x = 19,332.92 × 7,636.20
  4. Step 4: Simplify right side
    14,009.55x = 147,630,005.52
  5. Step 5: Solve for x
    x = 147,630,005.52/14,009.55
  6. Step 6: Final answer
    x = 10,537.81

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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.