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Finding the Fourth Proportional to 65,294.66, 90,127.14 and 37,019.18

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Solution

The fourth proportional to 65,294.66, 90,127.14 and 37,019.18 is: 51,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,294.66 : 90,127.14 = 37,019.18 : x
  2. Step 2: Convert to fraction form
    65,294.66/90,127.14 = 37,019.18/x
  3. Step 3: Cross multiply
    65,294.66x = 90,127.14 × 37,019.18
  4. Step 4: Simplify right side
    65,294.66x = 3,336,432,818.55
  5. Step 5: Solve for x
    x = 3,336,432,818.55/65,294.66
  6. Step 6: Final answer
    x = 51,098.10

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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.