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Finding the Fourth Proportional to 9,203,805.79, 12,701,290.35 and 5,073,746.20

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Solution

The fourth proportional to 9,203,805.79, 12,701,290.35 and 5,073,746.20 is: 7,001,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,203,805.79 : 12,701,290.35 = 5,073,746.20 : x
  2. Step 2: Convert to fraction form
    9,203,805.79/12,701,290.35 = 5,073,746.20/x
  3. Step 3: Cross multiply
    9,203,805.79x = 12,701,290.35 × 5,073,746.20
  4. Step 4: Simplify right side
    9,203,805.79x = 64,443,123,648,409.17
  5. Step 5: Solve for x
    x = 64,443,123,648,409.17/9,203,805.79
  6. Step 6: Final answer
    x = 7,001,790.90

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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.