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Finding the Fourth Proportional to 12,130.86, 16,739.06 and 7,094.08

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Solution

The fourth proportional to 12,130.86, 16,739.06 and 7,094.08 is: 9,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.86 : 16,739.06 = 7,094.08 : x
  2. Step 2: Convert to fraction form
    12,130.86/16,739.06 = 7,094.08/x
  3. Step 3: Cross multiply
    12,130.86x = 16,739.06 × 7,094.08
  4. Step 4: Simplify right side
    12,130.86x = 118,748,216.22
  5. Step 5: Solve for x
    x = 118,748,216.22/12,130.86
  6. Step 6: Final answer
    x = 9,788.93

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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.