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Finding the Fourth Proportional to 14,726.61, 20,320.88 and 9,956.93

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Solution

The fourth proportional to 14,726.61, 20,320.88 and 9,956.93 is: 13,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,726.61 : 20,320.88 = 9,956.93 : x
  2. Step 2: Convert to fraction form
    14,726.61/20,320.88 = 9,956.93/x
  3. Step 3: Cross multiply
    14,726.61x = 20,320.88 × 9,956.93
  4. Step 4: Simplify right side
    14,726.61x = 202,333,428.31
  5. Step 5: Solve for x
    x = 202,333,428.31/14,726.61
  6. Step 6: Final answer
    x = 13,739.31

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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.