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Finding the Fourth Proportional to 61,015.95, 84,206.68 and 35,178.71

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Solution

The fourth proportional to 61,015.95, 84,206.68 and 35,178.71 is: 48,549.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,015.95 : 84,206.68 = 35,178.71 : x
  2. Step 2: Convert to fraction form
    61,015.95/84,206.68 = 35,178.71/x
  3. Step 3: Cross multiply
    61,015.95x = 84,206.68 × 35,178.71
  4. Step 4: Simplify right side
    61,015.95x = 2,962,281,965.74
  5. Step 5: Solve for x
    x = 2,962,281,965.74/61,015.95
  6. Step 6: Final answer
    x = 48,549.30

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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.