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Finding the Fourth Proportional to 72,332.85, 100,009.80 and 63,354.59

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Solution

The fourth proportional to 72,332.85, 100,009.80 and 63,354.59 is: 87,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,332.85 : 100,009.80 = 63,354.59 : x
  2. Step 2: Convert to fraction form
    72,332.85/100,009.80 = 63,354.59/x
  3. Step 3: Cross multiply
    72,332.85x = 100,009.80 × 63,354.59
  4. Step 4: Simplify right side
    72,332.85x = 6,336,079,874.98
  5. Step 5: Solve for x
    x = 6,336,079,874.98/72,332.85
  6. Step 6: Final answer
    x = 87,596.16

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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.