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Finding the Fourth Proportional to 8,748,346.80, 12,219,342 and 8,748,346.80

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Solution

The fourth proportional to 8,748,346.80, 12,219,342 and 8,748,346.80 is: 12,219,342

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748,346.80 : 12,219,342 = 8,748,346.80 : x
  2. Step 2: Convert to fraction form
    8,748,346.80/12,219,342 = 8,748,346.80/x
  3. Step 3: Cross multiply
    8,748,346.80x = 12,219,342 × 8,748,346.80
  4. Step 4: Simplify right side
    8,748,346.80x = 106,899,041,483,805.61
  5. Step 5: Solve for x
    x = 106,899,041,483,805.61/8,748,346.80
  6. Step 6: Final answer
    x = 12,219,342

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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.