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Finding the Fourth Proportional to 11,656,399.20, 17,484,598.80 and 8,822,047.20

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Solution

The fourth proportional to 11,656,399.20, 17,484,598.80 and 8,822,047.20 is: 13,233,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656,399.20 : 17,484,598.80 = 8,822,047.20 : x
  2. Step 2: Convert to fraction form
    11,656,399.20/17,484,598.80 = 8,822,047.20/x
  3. Step 3: Cross multiply
    11,656,399.20x = 17,484,598.80 × 8,822,047.20
  4. Step 4: Simplify right side
    11,656,399.20x = 154,249,955,886,663.34
  5. Step 5: Solve for x
    x = 154,249,955,886,663.34/11,656,399.20
  6. Step 6: Final answer
    x = 13,233,070.80

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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.