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Finding the Fourth Proportional to 61,360.32, 92,059.80 and 21,916.56

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Solution

The fourth proportional to 61,360.32, 92,059.80 and 21,916.56 is: 32,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,360.32 : 92,059.80 = 21,916.56 : x
  2. Step 2: Convert to fraction form
    61,360.32/92,059.80 = 21,916.56/x
  3. Step 3: Cross multiply
    61,360.32x = 92,059.80 × 21,916.56
  4. Step 4: Simplify right side
    61,360.32x = 2,017,634,130.29
  5. Step 5: Solve for x
    x = 2,017,634,130.29/61,360.32
  6. Step 6: Final answer
    x = 32,881.74

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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.