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Finding the Fourth Proportional to 45,457.53, 62,812.74 and 35,411.91

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Solution

The fourth proportional to 45,457.53, 62,812.74 and 35,411.91 is: 48,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.53 : 62,812.74 = 35,411.91 : x
  2. Step 2: Convert to fraction form
    45,457.53/62,812.74 = 35,411.91/x
  3. Step 3: Cross multiply
    45,457.53x = 62,812.74 × 35,411.91
  4. Step 4: Simplify right side
    45,457.53x = 2,224,319,095.73
  5. Step 5: Solve for x
    x = 2,224,319,095.73/45,457.53
  6. Step 6: Final answer
    x = 48,931.81

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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.