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Finding the Fourth Proportional to 35,459.34, 48,934.12 and 19,543.79

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Solution

The fourth proportional to 35,459.34, 48,934.12 and 19,543.79 is: 26,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,459.34 : 48,934.12 = 19,543.79 : x
  2. Step 2: Convert to fraction form
    35,459.34/48,934.12 = 19,543.79/x
  3. Step 3: Cross multiply
    35,459.34x = 48,934.12 × 19,543.79
  4. Step 4: Simplify right side
    35,459.34x = 956,358,067.40
  5. Step 5: Solve for x
    x = 956,358,067.40/35,459.34
  6. Step 6: Final answer
    x = 26,970.55

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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.