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Finding the Fourth Proportional to 7,030.19, 9,698.74 and 4,372.99

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Solution

The fourth proportional to 7,030.19, 9,698.74 and 4,372.99 is: 6,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.19 : 9,698.74 = 4,372.99 : x
  2. Step 2: Convert to fraction form
    7,030.19/9,698.74 = 4,372.99/x
  3. Step 3: Cross multiply
    7,030.19x = 9,698.74 × 4,372.99
  4. Step 4: Simplify right side
    7,030.19x = 42,412,457.85
  5. Step 5: Solve for x
    x = 42,412,457.85/7,030.19
  6. Step 6: Final answer
    x = 6,032.90

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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.