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Finding the Fourth Proportional to 70,082.82, 105,125.04 and 17,492.76

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Solution

The fourth proportional to 70,082.82, 105,125.04 and 17,492.76 is: 26,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,082.82 : 105,125.04 = 17,492.76 : x
  2. Step 2: Convert to fraction form
    70,082.82/105,125.04 = 17,492.76/x
  3. Step 3: Cross multiply
    70,082.82x = 105,125.04 × 17,492.76
  4. Step 4: Simplify right side
    70,082.82x = 1,838,927,094.71
  5. Step 5: Solve for x
    x = 1,838,927,094.71/70,082.82
  6. Step 6: Final answer
    x = 26,239.34

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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.