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Finding the Fourth Proportional to 61,117.32, 84,346.76 and 35,971.68

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Solution

The fourth proportional to 61,117.32, 84,346.76 and 35,971.68 is: 49,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,117.32 : 84,346.76 = 35,971.68 : x
  2. Step 2: Convert to fraction form
    61,117.32/84,346.76 = 35,971.68/x
  3. Step 3: Cross multiply
    61,117.32x = 84,346.76 × 35,971.68
  4. Step 4: Simplify right side
    61,117.32x = 3,034,094,479.90
  5. Step 5: Solve for x
    x = 3,034,094,479.90/61,117.32
  6. Step 6: Final answer
    x = 49,643.77

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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.