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Finding the Fourth Proportional to 86,616.28, 119,530.86 and 46,872.28

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Solution

The fourth proportional to 86,616.28, 119,530.86 and 46,872.28 is: 64,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.28 : 119,530.86 = 46,872.28 : x
  2. Step 2: Convert to fraction form
    86,616.28/119,530.86 = 46,872.28/x
  3. Step 3: Cross multiply
    86,616.28x = 119,530.86 × 46,872.28
  4. Step 4: Simplify right side
    86,616.28x = 5,602,683,938.56
  5. Step 5: Solve for x
    x = 5,602,683,938.56/86,616.28
  6. Step 6: Final answer
    x = 64,683.96

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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.