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Finding the Fourth Proportional to 60,384.58, 90,438.92 and 28,816.81

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Solution

The fourth proportional to 60,384.58, 90,438.92 and 28,816.81 is: 43,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,384.58 : 90,438.92 = 28,816.81 : x
  2. Step 2: Convert to fraction form
    60,384.58/90,438.92 = 28,816.81/x
  3. Step 3: Cross multiply
    60,384.58x = 90,438.92 × 28,816.81
  4. Step 4: Simplify right side
    60,384.58x = 2,606,161,174.25
  5. Step 5: Solve for x
    x = 2,606,161,174.25/60,384.58
  6. Step 6: Final answer
    x = 43,159.38

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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.