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Finding the Fourth Proportional to 38,973,923.20, 54,653,072 and 38,973,923.20

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Solution

The fourth proportional to 38,973,923.20, 54,653,072 and 38,973,923.20 is: 54,653,072

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973,923.20 : 54,653,072 = 38,973,923.20 : x
  2. Step 2: Convert to fraction form
    38,973,923.20/54,653,072 = 38,973,923.20/x
  3. Step 3: Cross multiply
    38,973,923.20x = 54,653,072 × 38,973,923.20
  4. Step 4: Simplify right side
    38,973,923.20x = 2,130,044,630,772,070.50
  5. Step 5: Solve for x
    x = 2,130,044,630,772,070.50/38,973,923.20
  6. Step 6: Final answer
    x = 54,653,072

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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.