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Finding the Fourth Proportional to 5,931.06, 8,900.19 and 2,645.70

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Solution

The fourth proportional to 5,931.06, 8,900.19 and 2,645.70 is: 3,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.06 : 8,900.19 = 2,645.70 : x
  2. Step 2: Convert to fraction form
    5,931.06/8,900.19 = 2,645.70/x
  3. Step 3: Cross multiply
    5,931.06x = 8,900.19 × 2,645.70
  4. Step 4: Simplify right side
    5,931.06x = 23,547,232.68
  5. Step 5: Solve for x
    x = 23,547,232.68/5,931.06
  6. Step 6: Final answer
    x = 3,970.16

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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.