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Finding the Fourth Proportional to 64,797.90, 89,426.58 and 36,509.06

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Solution

The fourth proportional to 64,797.90, 89,426.58 and 36,509.06 is: 50,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,797.90 : 89,426.58 = 36,509.06 : x
  2. Step 2: Convert to fraction form
    64,797.90/89,426.58 = 36,509.06/x
  3. Step 3: Cross multiply
    64,797.90x = 89,426.58 × 36,509.06
  4. Step 4: Simplify right side
    64,797.90x = 3,264,880,374.81
  5. Step 5: Solve for x
    x = 3,264,880,374.81/64,797.90
  6. Step 6: Final answer
    x = 50,385.59

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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.