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Finding the Fourth Proportional to 7,159.99, 9,885.21 and 4,773.32

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Solution

The fourth proportional to 7,159.99, 9,885.21 and 4,773.32 is: 6,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.99 : 9,885.21 = 4,773.32 : x
  2. Step 2: Convert to fraction form
    7,159.99/9,885.21 = 4,773.32/x
  3. Step 3: Cross multiply
    7,159.99x = 9,885.21 × 4,773.32
  4. Step 4: Simplify right side
    7,159.99x = 47,185,270.60
  5. Step 5: Solve for x
    x = 47,185,270.60/7,159.99
  6. Step 6: Final answer
    x = 6,590.13

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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.