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Finding the Fourth Proportional to 12,752.47, 17,598.05 and 7,087.07

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Solution

The fourth proportional to 12,752.47, 17,598.05 and 7,087.07 is: 9,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,752.47 : 17,598.05 = 7,087.07 : x
  2. Step 2: Convert to fraction form
    12,752.47/17,598.05 = 7,087.07/x
  3. Step 3: Cross multiply
    12,752.47x = 17,598.05 × 7,087.07
  4. Step 4: Simplify right side
    12,752.47x = 124,718,612.21
  5. Step 5: Solve for x
    x = 124,718,612.21/12,752.47
  6. Step 6: Final answer
    x = 9,779.96

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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.