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Finding the Fourth Proportional to 64,959.95, 89,645.03 and 35,151.95

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Solution

The fourth proportional to 64,959.95, 89,645.03 and 35,151.95 is: 48,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.95 : 89,645.03 = 35,151.95 : x
  2. Step 2: Convert to fraction form
    64,959.95/89,645.03 = 35,151.95/x
  3. Step 3: Cross multiply
    64,959.95x = 89,645.03 × 35,151.95
  4. Step 4: Simplify right side
    64,959.95x = 3,151,196,988.32
  5. Step 5: Solve for x
    x = 3,151,196,988.32/64,959.95
  6. Step 6: Final answer
    x = 48,509.85

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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.