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Finding the Fourth Proportional to 18,792,704, 28,189,056 and 4,609,280

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Solution

The fourth proportional to 18,792,704, 28,189,056 and 4,609,280 is: 6,913,920

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,704 : 28,189,056 = 4,609,280 : x
  2. Step 2: Convert to fraction form
    18,792,704/28,189,056 = 4,609,280/x
  3. Step 3: Cross multiply
    18,792,704x = 28,189,056 × 4,609,280
  4. Step 4: Simplify right side
    18,792,704x = 129,931,252,039,680
  5. Step 5: Solve for x
    x = 129,931,252,039,680/18,792,704
  6. Step 6: Final answer
    x = 6,913,920

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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.