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Finding the Fourth Proportional to 9,964,312.80, 14,919,897.15 and 9,964,312.80

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Solution

The fourth proportional to 9,964,312.80, 14,919,897.15 and 9,964,312.80 is: 14,919,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964,312.80 : 14,919,897.15 = 9,964,312.80 : x
  2. Step 2: Convert to fraction form
    9,964,312.80/14,919,897.15 = 9,964,312.80/x
  3. Step 3: Cross multiply
    9,964,312.80x = 14,919,897.15 × 9,964,312.80
  4. Step 4: Simplify right side
    9,964,312.80x = 148,666,522,146,428.53
  5. Step 5: Solve for x
    x = 148,666,522,146,428.53/9,964,312.80
  6. Step 6: Final answer
    x = 14,919,897.15

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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.