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Finding the Fourth Proportional to 19,703.91, 29,382.35 and 19,526.21

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Solution

The fourth proportional to 19,703.91, 29,382.35 and 19,526.21 is: 29,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.91 : 29,382.35 = 19,526.21 : x
  2. Step 2: Convert to fraction form
    19,703.91/29,382.35 = 19,526.21/x
  3. Step 3: Cross multiply
    19,703.91x = 29,382.35 × 19,526.21
  4. Step 4: Simplify right side
    19,703.91x = 573,725,967.31
  5. Step 5: Solve for x
    x = 573,725,967.31/19,703.91
  6. Step 6: Final answer
    x = 29,117.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.