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Finding the Fourth Proportional to 76,762.48, 115,159.24 and 32,389.34

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Solution

The fourth proportional to 76,762.48, 115,159.24 and 32,389.34 is: 48,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,762.48 : 115,159.24 = 32,389.34 : x
  2. Step 2: Convert to fraction form
    76,762.48/115,159.24 = 32,389.34/x
  3. Step 3: Cross multiply
    76,762.48x = 115,159.24 × 32,389.34
  4. Step 4: Simplify right side
    76,762.48x = 3,729,931,778.50
  5. Step 5: Solve for x
    x = 3,729,931,778.50/76,762.48
  6. Step 6: Final answer
    x = 48,590.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.