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Finding the Fourth Proportional to 7,159.76, 9,880.34 and 4,365.26

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Solution

The fourth proportional to 7,159.76, 9,880.34 and 4,365.26 is: 6,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.76 : 9,880.34 = 4,365.26 : x
  2. Step 2: Convert to fraction form
    7,159.76/9,880.34 = 4,365.26/x
  3. Step 3: Cross multiply
    7,159.76x = 9,880.34 × 4,365.26
  4. Step 4: Simplify right side
    7,159.76x = 43,130,252.99
  5. Step 5: Solve for x
    x = 43,130,252.99/7,159.76
  6. Step 6: Final answer
    x = 6,023.98

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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.