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Finding the Fourth Proportional to 8,806,895.20, 13,197,901.20 and 6,514,530.40

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Solution

The fourth proportional to 8,806,895.20, 13,197,901.20 and 6,514,530.40 is: 9,762,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806,895.20 : 13,197,901.20 = 6,514,530.40 : x
  2. Step 2: Convert to fraction form
    8,806,895.20/13,197,901.20 = 6,514,530.40/x
  3. Step 3: Cross multiply
    8,806,895.20x = 13,197,901.20 × 6,514,530.40
  4. Step 4: Simplify right side
    8,806,895.20x = 85,978,128,583,596.48
  5. Step 5: Solve for x
    x = 85,978,128,583,596.48/8,806,895.20
  6. Step 6: Final answer
    x = 9,762,592.45

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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.