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Finding the Fourth Proportional to 70,045.65, 96,662.52 and 39,830.97

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Solution

The fourth proportional to 70,045.65, 96,662.52 and 39,830.97 is: 54,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,045.65 : 96,662.52 = 39,830.97 : x
  2. Step 2: Convert to fraction form
    70,045.65/96,662.52 = 39,830.97/x
  3. Step 3: Cross multiply
    70,045.65x = 96,662.52 × 39,830.97
  4. Step 4: Simplify right side
    70,045.65x = 3,850,161,934.24
  5. Step 5: Solve for x
    x = 3,850,161,934.24/70,045.65
  6. Step 6: Final answer
    x = 54,966.47

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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.