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Finding the Fourth Proportional to 65,543.49, 90,457.71 and 37,253.43

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Solution

The fourth proportional to 65,543.49, 90,457.71 and 37,253.43 is: 51,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,543.49 : 90,457.71 = 37,253.43 : x
  2. Step 2: Convert to fraction form
    65,543.49/90,457.71 = 37,253.43/x
  3. Step 3: Cross multiply
    65,543.49x = 90,457.71 × 37,253.43
  4. Step 4: Simplify right side
    65,543.49x = 3,369,859,967.45
  5. Step 5: Solve for x
    x = 3,369,859,967.45/65,543.49
  6. Step 6: Final answer
    x = 51,414.11

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1.5x scale

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.