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Finding the Fourth Proportional to 59,681.30, 89,521.95 and 28,071.71

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Solution

The fourth proportional to 59,681.30, 89,521.95 and 28,071.71 is: 42,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,681.30 : 89,521.95 = 28,071.71 : x
  2. Step 2: Convert to fraction form
    59,681.30/89,521.95 = 28,071.71/x
  3. Step 3: Cross multiply
    59,681.30x = 89,521.95 × 28,071.71
  4. Step 4: Simplify right side
    59,681.30x = 2,513,034,219.03
  5. Step 5: Solve for x
    x = 2,513,034,219.03/59,681.30
  6. Step 6: Final answer
    x = 42,107.57

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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.