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Finding the Fourth Proportional to 15,377.01, 23,069.70 and 4,988.76

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Solution

The fourth proportional to 15,377.01, 23,069.70 and 4,988.76 is: 7,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.01 : 23,069.70 = 4,988.76 : x
  2. Step 2: Convert to fraction form
    15,377.01/23,069.70 = 4,988.76/x
  3. Step 3: Cross multiply
    15,377.01x = 23,069.70 × 4,988.76
  4. Step 4: Simplify right side
    15,377.01x = 115,089,196.57
  5. Step 5: Solve for x
    x = 115,089,196.57/15,377.01
  6. Step 6: Final answer
    x = 7,484.50

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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.