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Finding the Fourth Proportional to 8,835,388.40, 13,234,420.20 and 8,835,388.40

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Solution

The fourth proportional to 8,835,388.40, 13,234,420.20 and 8,835,388.40 is: 13,234,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835,388.40 : 13,234,420.20 = 8,835,388.40 : x
  2. Step 2: Convert to fraction form
    8,835,388.40/13,234,420.20 = 8,835,388.40/x
  3. Step 3: Cross multiply
    8,835,388.40x = 13,234,420.20 × 8,835,388.40
  4. Step 4: Simplify right side
    8,835,388.40x = 116,931,242,715,805.67
  5. Step 5: Solve for x
    x = 116,931,242,715,805.67/8,835,388.40
  6. Step 6: Final answer
    x = 13,234,420.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.