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Finding the Fourth Proportional to 39,103,662.80, 54,858,502 and 39,103,662.80

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Solution

The fourth proportional to 39,103,662.80, 54,858,502 and 39,103,662.80 is: 54,858,502

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103,662.80 : 54,858,502 = 39,103,662.80 : x
  2. Step 2: Convert to fraction form
    39,103,662.80/54,858,502 = 39,103,662.80/x
  3. Step 3: Cross multiply
    39,103,662.80x = 54,858,502 × 39,103,662.80
  4. Step 4: Simplify right side
    39,103,662.80x = 2,145,168,363,921,125.50
  5. Step 5: Solve for x
    x = 2,145,168,363,921,125.50/39,103,662.80
  6. Step 6: Final answer
    x = 54,858,502

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Double scale
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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.