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Finding the Fourth Proportional to 27,658,768.80, 38,646,693.60 and 27,658,768.80

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Solution

The fourth proportional to 27,658,768.80, 38,646,693.60 and 27,658,768.80 is: 38,646,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658,768.80 : 38,646,693.60 = 27,658,768.80 : x
  2. Step 2: Convert to fraction form
    27,658,768.80/38,646,693.60 = 27,658,768.80/x
  3. Step 3: Cross multiply
    27,658,768.80x = 38,646,693.60 × 27,658,768.80
  4. Step 4: Simplify right side
    27,658,768.80x = 1,068,919,963,166,839.75
  5. Step 5: Solve for x
    x = 1,068,919,963,166,839.75/27,658,768.80
  6. Step 6: Final answer
    x = 38,646,693.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.