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Finding the Fourth Proportional to 71,480.16, 98,644.07 and 42,801.07

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Solution

The fourth proportional to 71,480.16, 98,644.07 and 42,801.07 is: 59,066.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,480.16 : 98,644.07 = 42,801.07 : x
  2. Step 2: Convert to fraction form
    71,480.16/98,644.07 = 42,801.07/x
  3. Step 3: Cross multiply
    71,480.16x = 98,644.07 × 42,801.07
  4. Step 4: Simplify right side
    71,480.16x = 4,222,071,628.28
  5. Step 5: Solve for x
    x = 4,222,071,628.28/71,480.16
  6. Step 6: Final answer
    x = 59,066.34

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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.