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Finding the Fourth Proportional to 8,859,167.20, 12,436,426.40 and 8,859,167.20

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Solution

The fourth proportional to 8,859,167.20, 12,436,426.40 and 8,859,167.20 is: 12,436,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859,167.20 : 12,436,426.40 = 8,859,167.20 : x
  2. Step 2: Convert to fraction form
    8,859,167.20/12,436,426.40 = 8,859,167.20/x
  3. Step 3: Cross multiply
    8,859,167.20x = 12,436,426.40 × 8,859,167.20
  4. Step 4: Simplify right side
    8,859,167.20x = 110,176,380,848,094.08
  5. Step 5: Solve for x
    x = 110,176,380,848,094.08/8,859,167.20
  6. Step 6: Final answer
    x = 12,436,426.40

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1.5x scale

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.