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Finding the Fourth Proportional to 72,590.60, 109,312.27 and 63,340.97

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Solution

The fourth proportional to 72,590.60, 109,312.27 and 63,340.97 is: 95,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,590.60 : 109,312.27 = 63,340.97 : x
  2. Step 2: Convert to fraction form
    72,590.60/109,312.27 = 63,340.97/x
  3. Step 3: Cross multiply
    72,590.60x = 109,312.27 × 63,340.97
  4. Step 4: Simplify right side
    72,590.60x = 6,923,944,509.79
  5. Step 5: Solve for x
    x = 6,923,944,509.79/72,590.60
  6. Step 6: Final answer
    x = 95,383.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.