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Finding the Fourth Proportional to 56,444.70, 77,894.56 and 30,953.39

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Solution

The fourth proportional to 56,444.70, 77,894.56 and 30,953.39 is: 42,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,444.70 : 77,894.56 = 30,953.39 : x
  2. Step 2: Convert to fraction form
    56,444.70/77,894.56 = 30,953.39/x
  3. Step 3: Cross multiply
    56,444.70x = 77,894.56 × 30,953.39
  4. Step 4: Simplify right side
    56,444.70x = 2,411,100,781.93
  5. Step 5: Solve for x
    x = 2,411,100,781.93/56,444.70
  6. Step 6: Final answer
    x = 42,716.16

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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.