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Finding the Fourth Proportional to 14,865,696.01, 20,510,062.95 and 8,666,354.58

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Solution

The fourth proportional to 14,865,696.01, 20,510,062.95 and 8,666,354.58 is: 11,956,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865,696.01 : 20,510,062.95 = 8,666,354.58 : x
  2. Step 2: Convert to fraction form
    14,865,696.01/20,510,062.95 = 8,666,354.58/x
  3. Step 3: Cross multiply
    14,865,696.01x = 20,510,062.95 × 8,666,354.58
  4. Step 4: Simplify right side
    14,865,696.01x = 177,747,478,053,776
  5. Step 5: Solve for x
    x = 177,747,478,053,776/14,865,696.01
  6. Step 6: Final answer
    x = 11,956,889.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.