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Finding the Fourth Proportional to 56,428.62, 84,681.88 and 19,492.62

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Solution

The fourth proportional to 56,428.62, 84,681.88 and 19,492.62 is: 29,252.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.62 : 84,681.88 = 19,492.62 : x
  2. Step 2: Convert to fraction form
    56,428.62/84,681.88 = 19,492.62/x
  3. Step 3: Cross multiply
    56,428.62x = 84,681.88 × 19,492.62
  4. Step 4: Simplify right side
    56,428.62x = 1,650,671,707.73
  5. Step 5: Solve for x
    x = 1,650,671,707.73/56,428.62
  6. Step 6: Final answer
    x = 29,252.38

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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.