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Finding the Fourth Proportional to 61,225.28, 84,492.12 and 34,369.76

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Solution

The fourth proportional to 61,225.28, 84,492.12 and 34,369.76 is: 47,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,225.28 : 84,492.12 = 34,369.76 : x
  2. Step 2: Convert to fraction form
    61,225.28/84,492.12 = 34,369.76/x
  3. Step 3: Cross multiply
    61,225.28x = 84,492.12 × 34,369.76
  4. Step 4: Simplify right side
    61,225.28x = 2,903,973,886.29
  5. Step 5: Solve for x
    x = 2,903,973,886.29/61,225.28
  6. Step 6: Final answer
    x = 47,430.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.