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Finding the Fourth Proportional to 7,248.99, 9,990.95 and 5,830.18

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Solution

The fourth proportional to 7,248.99, 9,990.95 and 5,830.18 is: 8,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.99 : 9,990.95 = 5,830.18 : x
  2. Step 2: Convert to fraction form
    7,248.99/9,990.95 = 5,830.18/x
  3. Step 3: Cross multiply
    7,248.99x = 9,990.95 × 5,830.18
  4. Step 4: Simplify right side
    7,248.99x = 58,248,982.74
  5. Step 5: Solve for x
    x = 58,248,982.74/7,248.99
  6. Step 6: Final answer
    x = 8,035.46

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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.