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Finding the Fourth Proportional to 61,088.16, 91,573.92 and 19,508.16

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Solution

The fourth proportional to 61,088.16, 91,573.92 and 19,508.16 is: 29,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,088.16 : 91,573.92 = 19,508.16 : x
  2. Step 2: Convert to fraction form
    61,088.16/91,573.92 = 19,508.16/x
  3. Step 3: Cross multiply
    61,088.16x = 91,573.92 × 19,508.16
  4. Step 4: Simplify right side
    61,088.16x = 1,786,438,683.19
  5. Step 5: Solve for x
    x = 1,786,438,683.19/61,088.16
  6. Step 6: Final answer
    x = 29,243.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.