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Finding the Fourth Proportional to 67,913.40, 93,720 and 37,697.68

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Solution

The fourth proportional to 67,913.40, 93,720 and 37,697.68 is: 52,022.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,913.40 : 93,720 = 37,697.68 : x
  2. Step 2: Convert to fraction form
    67,913.40/93,720 = 37,697.68/x
  3. Step 3: Cross multiply
    67,913.40x = 93,720 × 37,697.68
  4. Step 4: Simplify right side
    67,913.40x = 3,533,026,569.60
  5. Step 5: Solve for x
    x = 3,533,026,569.60/67,913.40
  6. Step 6: Final answer
    x = 52,022.53

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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.