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Finding the Fourth Proportional to 85,598.83, 128,328.65 and 35,716.08

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Solution

The fourth proportional to 85,598.83, 128,328.65 and 35,716.08 is: 53,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.83 : 128,328.65 = 35,716.08 : x
  2. Step 2: Convert to fraction form
    85,598.83/128,328.65 = 35,716.08/x
  3. Step 3: Cross multiply
    85,598.83x = 128,328.65 × 35,716.08
  4. Step 4: Simplify right side
    85,598.83x = 4,583,396,329.69
  5. Step 5: Solve for x
    x = 4,583,396,329.69/85,598.83
  6. Step 6: Final answer
    x = 53,545.08

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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.