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Finding the Fourth Proportional to 61,390.24, 84,719.72 and 35,898.88

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Solution

The fourth proportional to 61,390.24, 84,719.72 and 35,898.88 is: 49,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,390.24 : 84,719.72 = 35,898.88 : x
  2. Step 2: Convert to fraction form
    61,390.24/84,719.72 = 35,898.88/x
  3. Step 3: Cross multiply
    61,390.24x = 84,719.72 × 35,898.88
  4. Step 4: Simplify right side
    61,390.24x = 3,041,343,061.91
  5. Step 5: Solve for x
    x = 3,041,343,061.91/61,390.24
  6. Step 6: Final answer
    x = 49,541.15

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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.