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Finding the Fourth Proportional to 64,981.60, 97,342.80 and 33,834.40

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Solution

The fourth proportional to 64,981.60, 97,342.80 and 33,834.40 is: 50,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,981.60 : 97,342.80 = 33,834.40 : x
  2. Step 2: Convert to fraction form
    64,981.60/97,342.80 = 33,834.40/x
  3. Step 3: Cross multiply
    64,981.60x = 97,342.80 × 33,834.40
  4. Step 4: Simplify right side
    64,981.60x = 3,293,535,232.32
  5. Step 5: Solve for x
    x = 3,293,535,232.32/64,981.60
  6. Step 6: Final answer
    x = 50,684.12

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1.5x scale

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.