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Finding the Fourth Proportional to 60,007.80, 89,817.30 and 53,009.40

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Solution

The fourth proportional to 60,007.80, 89,817.30 and 53,009.40 is: 79,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,007.80 : 89,817.30 = 53,009.40 : x
  2. Step 2: Convert to fraction form
    60,007.80/89,817.30 = 53,009.40/x
  3. Step 3: Cross multiply
    60,007.80x = 89,817.30 × 53,009.40
  4. Step 4: Simplify right side
    60,007.80x = 4,761,161,182.62
  5. Step 5: Solve for x
    x = 4,761,161,182.62/60,007.80
  6. Step 6: Final answer
    x = 79,342.37

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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.