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Finding the Fourth Proportional to 19,543.40, 26,970 and 10,590.91

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Solution

The fourth proportional to 19,543.40, 26,970 and 10,590.91 is: 14,615.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.40 : 26,970 = 10,590.91 : x
  2. Step 2: Convert to fraction form
    19,543.40/26,970 = 10,590.91/x
  3. Step 3: Cross multiply
    19,543.40x = 26,970 × 10,590.91
  4. Step 4: Simplify right side
    19,543.40x = 285,636,842.70
  5. Step 5: Solve for x
    x = 285,636,842.70/19,543.40
  6. Step 6: Final answer
    x = 14,615.51

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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.