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Finding the Fourth Proportional to 51,648.30, 77,472.45 and 14,712.30

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Solution

The fourth proportional to 51,648.30, 77,472.45 and 14,712.30 is: 22,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,648.30 : 77,472.45 = 14,712.30 : x
  2. Step 2: Convert to fraction form
    51,648.30/77,472.45 = 14,712.30/x
  3. Step 3: Cross multiply
    51,648.30x = 77,472.45 × 14,712.30
  4. Step 4: Simplify right side
    51,648.30x = 1,139,797,926.14
  5. Step 5: Solve for x
    x = 1,139,797,926.14/51,648.30
  6. Step 6: Final answer
    x = 22,068.45

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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.