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Finding the Fourth Proportional to 9,916,521.90, 14,874,782.85 and 9,916,521.90

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Solution

The fourth proportional to 9,916,521.90, 14,874,782.85 and 9,916,521.90 is: 14,874,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916,521.90 : 14,874,782.85 = 9,916,521.90 : x
  2. Step 2: Convert to fraction form
    9,916,521.90/14,874,782.85 = 9,916,521.90/x
  3. Step 3: Cross multiply
    9,916,521.90x = 14,874,782.85 × 9,916,521.90
  4. Step 4: Simplify right side
    9,916,521.90x = 147,506,109,889,769.41
  5. Step 5: Solve for x
    x = 147,506,109,889,769.41/9,916,521.90
  6. Step 6: Final answer
    x = 14,874,782.85

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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.