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Finding the Fourth Proportional to 69,115.68, 103,672.28 and 22,368.60

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Solution

The fourth proportional to 69,115.68, 103,672.28 and 22,368.60 is: 33,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,115.68 : 103,672.28 = 22,368.60 : x
  2. Step 2: Convert to fraction form
    69,115.68/103,672.28 = 22,368.60/x
  3. Step 3: Cross multiply
    69,115.68x = 103,672.28 × 22,368.60
  4. Step 4: Simplify right side
    69,115.68x = 2,319,003,762.41
  5. Step 5: Solve for x
    x = 2,319,003,762.41/69,115.68
  6. Step 6: Final answer
    x = 33,552.50

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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.