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Finding the Fourth Proportional to 69,509.75, 95,916.35 and 42,653.39

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Solution

The fourth proportional to 69,509.75, 95,916.35 and 42,653.39 is: 58,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,509.75 : 95,916.35 = 42,653.39 : x
  2. Step 2: Convert to fraction form
    69,509.75/95,916.35 = 42,653.39/x
  3. Step 3: Cross multiply
    69,509.75x = 95,916.35 × 42,653.39
  4. Step 4: Simplify right side
    69,509.75x = 4,091,157,110.98
  5. Step 5: Solve for x
    x = 4,091,157,110.98/69,509.75
  6. Step 6: Final answer
    x = 58,857.32

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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.