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Finding the Fourth Proportional to 14,573,920.80, 21,842,218.80 and 11,191,360.80

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Solution

The fourth proportional to 14,573,920.80, 21,842,218.80 and 11,191,360.80 is: 16,772,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,573,920.80 : 21,842,218.80 = 11,191,360.80 : x
  2. Step 2: Convert to fraction form
    14,573,920.80/21,842,218.80 = 11,191,360.80/x
  3. Step 3: Cross multiply
    14,573,920.80x = 21,842,218.80 × 11,191,360.80
  4. Step 4: Simplify right side
    14,573,920.80x = 244,444,151,263,343.06
  5. Step 5: Solve for x
    x = 244,444,151,263,343.06/14,573,920.80
  6. Step 6: Final answer
    x = 16,772,710.28

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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.