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Finding the Fourth Proportional to 64,139.35, 88,511.71 and 35,459.76

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Solution

The fourth proportional to 64,139.35, 88,511.71 and 35,459.76 is: 48,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139.35 : 88,511.71 = 35,459.76 : x
  2. Step 2: Convert to fraction form
    64,139.35/88,511.71 = 35,459.76/x
  3. Step 3: Cross multiply
    64,139.35x = 88,511.71 × 35,459.76
  4. Step 4: Simplify right side
    64,139.35x = 3,138,603,993.79
  5. Step 5: Solve for x
    x = 3,138,603,993.79/64,139.35
  6. Step 6: Final answer
    x = 48,934.14

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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.