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Finding the Fourth Proportional to 15,561, 23,341.50 and 4,617

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Solution

The fourth proportional to 15,561, 23,341.50 and 4,617 is: 6,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561 : 23,341.50 = 4,617 : x
  2. Step 2: Convert to fraction form
    15,561/23,341.50 = 4,617/x
  3. Step 3: Cross multiply
    15,561x = 23,341.50 × 4,617
  4. Step 4: Simplify right side
    15,561x = 107,767,705.50
  5. Step 5: Solve for x
    x = 107,767,705.50/15,561
  6. Step 6: Final answer
    x = 6,925.50

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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.