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Finding the Fourth Proportional to 72,328.65, 99,746.94 and 49,627.59

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Solution

The fourth proportional to 72,328.65, 99,746.94 and 49,627.59 is: 68,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,328.65 : 99,746.94 = 49,627.59 : x
  2. Step 2: Convert to fraction form
    72,328.65/99,746.94 = 49,627.59/x
  3. Step 3: Cross multiply
    72,328.65x = 99,746.94 × 49,627.59
  4. Step 4: Simplify right side
    72,328.65x = 4,950,200,242.07
  5. Step 5: Solve for x
    x = 4,950,200,242.07/72,328.65
  6. Step 6: Final answer
    x = 68,440.38

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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.