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Finding the Fourth Proportional to 12,927.60, 19,365.93 and 7,364.16

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Solution

The fourth proportional to 12,927.60, 19,365.93 and 7,364.16 is: 11,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.60 : 19,365.93 = 7,364.16 : x
  2. Step 2: Convert to fraction form
    12,927.60/19,365.93 = 7,364.16/x
  3. Step 3: Cross multiply
    12,927.60x = 19,365.93 × 7,364.16
  4. Step 4: Simplify right side
    12,927.60x = 142,613,807.07
  5. Step 5: Solve for x
    x = 142,613,807.07/12,927.60
  6. Step 6: Final answer
    x = 11,031.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.