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Finding the Fourth Proportional to 7,059.08, 9,742.80 and 4,074.50

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Solution

The fourth proportional to 7,059.08, 9,742.80 and 4,074.50 is: 5,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059.08 : 9,742.80 = 4,074.50 : x
  2. Step 2: Convert to fraction form
    7,059.08/9,742.80 = 4,074.50/x
  3. Step 3: Cross multiply
    7,059.08x = 9,742.80 × 4,074.50
  4. Step 4: Simplify right side
    7,059.08x = 39,697,038.60
  5. Step 5: Solve for x
    x = 39,697,038.60/7,059.08
  6. Step 6: Final answer
    x = 5,623.54

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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.