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Finding the Fourth Proportional to 19,705.68, 29,528.13 and 9,698.94

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Solution

The fourth proportional to 19,705.68, 29,528.13 and 9,698.94 is: 14,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.68 : 29,528.13 = 9,698.94 : x
  2. Step 2: Convert to fraction form
    19,705.68/29,528.13 = 9,698.94/x
  3. Step 3: Cross multiply
    19,705.68x = 29,528.13 × 9,698.94
  4. Step 4: Simplify right side
    19,705.68x = 286,391,561.18
  5. Step 5: Solve for x
    x = 286,391,561.18/19,705.68
  6. Step 6: Final answer
    x = 14,533.45

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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.