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Finding the Fourth Proportional to 60,389.97, 90,497.47 and 34,038.65

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Solution

The fourth proportional to 60,389.97, 90,497.47 and 34,038.65 is: 51,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,389.97 : 90,497.47 = 34,038.65 : x
  2. Step 2: Convert to fraction form
    60,389.97/90,497.47 = 34,038.65/x
  3. Step 3: Cross multiply
    60,389.97x = 90,497.47 × 34,038.65
  4. Step 4: Simplify right side
    60,389.97x = 3,080,411,707.22
  5. Step 5: Solve for x
    x = 3,080,411,707.22/60,389.97
  6. Step 6: Final answer
    x = 51,008.66

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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.