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Finding the Fourth Proportional to 52,397.82, 78,596.73 and 12,955.28

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Solution

The fourth proportional to 52,397.82, 78,596.73 and 12,955.28 is: 19,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,397.82 : 78,596.73 = 12,955.28 : x
  2. Step 2: Convert to fraction form
    52,397.82/78,596.73 = 12,955.28/x
  3. Step 3: Cross multiply
    52,397.82x = 78,596.73 × 12,955.28
  4. Step 4: Simplify right side
    52,397.82x = 1,018,242,186.47
  5. Step 5: Solve for x
    x = 1,018,242,186.47/52,397.82
  6. Step 6: Final answer
    x = 19,432.91

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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.