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Finding the Fourth Proportional to 8,624.84, 11,895.06 and 5,307.08

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Solution

The fourth proportional to 8,624.84, 11,895.06 and 5,307.08 is: 7,319.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.84 : 11,895.06 = 5,307.08 : x
  2. Step 2: Convert to fraction form
    8,624.84/11,895.06 = 5,307.08/x
  3. Step 3: Cross multiply
    8,624.84x = 11,895.06 × 5,307.08
  4. Step 4: Simplify right side
    8,624.84x = 63,128,035.02
  5. Step 5: Solve for x
    x = 63,128,035.02/8,624.84
  6. Step 6: Final answer
    x = 7,319.33

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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.