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Finding the Fourth Proportional to 56,190.96, 77,536.92 and 31,038.96

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Solution

The fourth proportional to 56,190.96, 77,536.92 and 31,038.96 is: 42,830.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,190.96 : 77,536.92 = 31,038.96 : x
  2. Step 2: Convert to fraction form
    56,190.96/77,536.92 = 31,038.96/x
  3. Step 3: Cross multiply
    56,190.96x = 77,536.92 × 31,038.96
  4. Step 4: Simplify right side
    56,190.96x = 2,406,665,358.40
  5. Step 5: Solve for x
    x = 2,406,665,358.40/56,190.96
  6. Step 6: Final answer
    x = 42,830.12

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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.