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Finding the Fourth Proportional to 8,602,828.91, 12,900,457.36 and 4,558,384.53

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Solution

The fourth proportional to 8,602,828.91, 12,900,457.36 and 4,558,384.53 is: 6,835,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602,828.91 : 12,900,457.36 = 4,558,384.53 : x
  2. Step 2: Convert to fraction form
    8,602,828.91/12,900,457.36 = 4,558,384.53/x
  3. Step 3: Cross multiply
    8,602,828.91x = 12,900,457.36 × 4,558,384.53
  4. Step 4: Simplify right side
    8,602,828.91x = 58,805,245,203,523.17
  5. Step 5: Solve for x
    x = 58,805,245,203,523.17/8,602,828.91
  6. Step 6: Final answer
    x = 6,835,570.69

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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.