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Finding the Fourth Proportional to 9,267,398.59, 12,788,364.90 and 5,137,390.03

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Solution

The fourth proportional to 9,267,398.59, 12,788,364.90 and 5,137,390.03 is: 7,089,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267,398.59 : 12,788,364.90 = 5,137,390.03 : x
  2. Step 2: Convert to fraction form
    9,267,398.59/12,788,364.90 = 5,137,390.03/x
  3. Step 3: Cross multiply
    9,267,398.59x = 12,788,364.90 × 5,137,390.03
  4. Step 4: Simplify right side
    9,267,398.59x = 65,698,818,337,261.95
  5. Step 5: Solve for x
    x = 65,698,818,337,261.95/9,267,398.59
  6. Step 6: Final answer
    x = 7,089,240.60

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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.